The increased deposition rates that metal-cored wires offer help increase travel speeds and decrease the number of passes required to make a weld. 26 5 spindle speed (rpm). TV . Does anyone know what the proper speed and feed and depth of cut should be for a gear cutter with the following specs: #3 cutter. A: Metal-cored wires typically are more expensive than solid wires upfront, but it’s important to consider the total costs in a welding operation. The feed rolls on each side have these worn gripper strips that need replacing. AR400. I've been working with AW36 steel and 304 Stainless. . 0017, SFM 350Enter feeds and speeds into RhinoCam. Our G-Wizard Speeds and Feeds Calculator can computer proper Speeds and Feed Rates for Spade Drill Bits in a variety of materials. 82/tool diameter. . Used for up to 62 HRc hardened steel, titanium, nickel-based alloys and stainless steel at high speeds and medium feeds. Start conservatively and increase speed and feed until drilling cycle is optimized. Liberal amounts of a good coolant are essential. When you’re machining 304, use deep cuts at a high feed rate to. It is about the same hardness as Titanium Carbonitride (TiCN,) but maintains. It refers to choosing the speed at which to spin the cutting tool, and how. 5 amps. With the map. 205 for that hole, gives you about 68% of thread instead of over 70%, feed rate at 2. gatz said:Speeds and Feeds Charts: Obsolete. Screw Size Series 67 Size All other C’sinks Size #4 7/16 1/4 #5 9/16 5/16Speeds and Feeds Charts: Obsolete. Advanced Feeds and Speeds. Category overview ; List of all discussion forums ; The 100 latest forum topics ; IndustryArena. 010″ depth of cut is only 0. Feed Rate f (mm/rev) H Type L Type G Type ACP300ACP300 ACM300 ACK300 DL1500DL1500 M Stainless Steel Steel P (High-speed Drilling) Cast Iron K (High-speed Drilling) Cast Iron K (General Drilling) Non-Ferrous N Metals Grade Work Material P Steel (General Drilling) ACP100ACP100 L Type P K G Type P K H Type P K H P G P M L. (2008). But I cant find any speeds and feeds for it online and the company. Spindle speed: 16,400 RPM Max pass depth: 0. Feed Rate = RPM x Chip Load x Number of Teeth. It offers higher deposition rates than GMAW, handles dirtier plates, and uses lower cost 100% carbon dioxide. All I had for my mill at the time was a 1/2" chuck. technology and incorporated state of the art features while improving reliability and speed. 0625" wide by half inch deep. Feed Per Revolution: IPM (Milling) FPT: RPM: = Inches Per Minute (Milling) Number of Teeth: Number of teeth are necessary for IPM Milling calculation. zip (792 Bytes) Here is a version which has the Amana feeds and speeds copied into it — breaking this up and naming it appropriately by appropriate materials. New and popular video trendsDo you need to find the best tool and cutting data for your machining operations? Try the Sandvik Coromant CoroPlus® ToolGuide, a web-based application that helps you select the right tool and optimize the cutting parameters for your material and operation. Aluminium. 520 mm 1/2 in. As a DML TA, you need to understand basic calculations that will allow the tools you use to work as intended. Milling operations remove material by feeding a workpiece into a rotating cutting tool with sharp teeth, such as an end mill or face mill. 2. We are still using a Single Cutting edge tool. Bill3D • 6 yr. com S3_feeds_250. for a 1. 5 IPM feed Which is fine, most controllers handle . Consult a Monitor or Manager for any/all other foam materials. Tool Library Cutting Data. RPM = Of the tool or workpiece. High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS (354) In actual use, depending on the machine environment and workpiece material, significantly higher speeds & feeds may be achievable. Recommended Feed Rate: . carbide3d. I have some 5/8" solid carbide endmills that i would like to try a trochodial tool path with, basically just for practice and to test this kind of tool path. #5. 4-3. A2 is a nice material. Usually, abrasion-resistant steel is termed “AR450F” and “AR400F” (and at times “AR500F”). 007 chipload per tooth = 350 IPM. These values correspond to a cutting speed of ~6m/min, which is a ~1/15 of the cutting speed needed for steel. ( guessing AR400). ” Soft wood Name SB# Onsrud Series Cut Chip Load per leading edge Flutes Feed Rate (ips) Feed rate (ipm) RPM Max Cut 1” 60 degree Carbide V cutter 13648 37-82 1 x D . Important Disclaimer: The Accupro speed and feed rates are suggested by the manufacturer as a general guideline. 025 IPR is a typical number. But as was pointed out a bandsaw cut will be perfectly adequate. 2. Calculate the Speeds and Feeds of Carbide End Mills, Diamond End Mills, and Plastic Cutting Carbide End Mills with these General Machining Guidelines. com Cut about 20% stepover amount in your toolpath settings. Throw away those old speeds and feeds charts and pdfs. Therefore, it only covers 2 variables. The "feeds". Chip loads can vary quite a bit. com. 010″ depth of cut: The effective diameter in an 0. 005” (Chip Load) = 80 IPM (Feed) RPM and Feed relationship. 1. May 5, 2023. More products like this. The drilling sessions should be short, with adequate pressure. . 0025 in 1018 CRS. 004-. 3. 05 inches per tooth. In carbon steel, the carbon content is King. 150. Using an RPM of 15,280 would give a feedrate of 122 in/min. I've heard the rule of thumb is twice the feed and half the RPM. 0625" wide by half inch deep. 2-3% of the diameter. As with other abrasion resistant steels, it does not have a defined chemistry, but rather, grade is determined based on. As a result, customers can expect longer-lasting wear parts in some of the toughest applications. I have a 4. But running work at proper feeds and speeds is the best way to cut clean holes and tap stainless steel most efficiently. Milling operations. Questions? Contact Cleveland technical support at 888-434-8665. The versatile 400-amp rated system combines fast cutting speeds, rapid process cycling, quick changeovers and high reliability, and delivers the ultimate in HyPerformance mild steel cutting, plus aluminum capability and unmatched. Then decrease speed by 10%. Chrome levers for half-nuts, tool post and tailstock. flatheadkid said: Hello. 5" wide x 20" long 1" thick AR-400 plates that need a centered slot cut completely through them 3. AR450: 430-480 BHN Typically. The Speeds and Feeds Calculator may be employed for calculations of estimated speeds and feeds (RPM and IPM) values on the basis of the parameters you have currently set based on your tools and stock material. Uncoated Cobalt End Mills: Increase speed by 25% For Lighter Radial Depths-of-Cut: Higher range of recommended surface speeds should be used For Greater Radial Depths-of-Cut: Lower range of recommended surface speeds should be used For Slotting Applications: Speeds (SFM) should be reduced approximately 20% of lowest range valueThe YouTube feeds and speeds were worked up by @wmoy as an example for the purposes of the video. 1 – Feeds and Speeds options on the Tool Page for a Profile Rough Operation. Workpiece Material Brinell Hardness (BHN) Morse List No. feed rate within the specified range. 4 - 62kW (83Hp) Stage V and Tier 4: Caterpillar C2. 069 1/2 1 18 141 24 139 0. I have some 5/8" solid carbide endmills that i would like to try a trochodial tool path with, basically just for practice and to test this kind of tool path. BHN signifies the hardness level of the material: AR400: 360-440 BHN Typically. SpeTool Fusion 360, SpeTool tools database, SpeTool tools file, SpeTool database, SpeTool library, SpeTool feeds and speeds. I have a 4. 3. 020″! To select a V-Bit in G-Wizard, treat it like an endmill. They are often considered as a pair because of their combined effect on the cutting process. Start conservatively and increase speed and feed until drilling cycle is optimized. AR400 steel has a variety of benefits that makes it an ideal substitute for almost any application where excessive. 054 10 GA 0. 5 mm) thick plate, and at least 110 ksi (758. 25/200 = 4 ipm This a starting point, I usually crank down a little from these recommended settings to see how. Machining Advisor Pro is a cutting-edge tool that provides optimal running parameters for CNC milling and drilling applications. xx feeds. Choose either HSS or Carbide, depending on what material your V-Bit is made from. To navigate to this tool page, right-click on the current operation you want to view in your CAM Tree and select “Edit”. I have some 5/8" solid carbide endmills that i would like to try a trochodial tool path with, basically just for practice and to test this kind of tool path. Apr 30, 2012 #1. For 1/2" 4fl I'm running 1" doc . These straps are 15-1/2" long. Use Higher Feed Rates in Soft Materials. Hammer Mills Rotor Assembly: Four-way reversible AR400 or 304 stainless steel hammers; Optimized diameter heat-treated or stainless steel hammer rods;AR400 steel in a tongue-and-groove design to prevent material becoming lodged under the press. I have some 5/8" solid carbide endmills that i would like to try a trochodial tool path with, basically just for practice and to test this kind of tool path. If you are going to use performance carbide drills in that material, 28-32 HrC use 225 as a starting SFM and the feed rate is always a percentage of the drill size. Imperial: RPM =12 x cutting speed (feet per minute) / pi x D (inches) D is your tool’s diameter in inches. They are 1/4 " thick, and stick out 5/8". The drill point should never squeal until it starts to dull. 250 sfm 175 feed . This makes TiAlN very effective in high-temperature alloys, high-speed machining, and dry milling applications. . 14. Due to its extreme hardness, AlgoTuf 500 is rarely machined. See full list on associatedsteel. Thread starter JMG; Start date Apr 30, 2012; Replies 0 Views 1,681 J. Easily weldable with an E7018 rod. Work at a slower speed and higher feed than if you were machining 304. When you’re ready to pick up even more power, take the other tours. 0256 (Major thread diameter - Tool diameter) / 4 Full rotation value. It's the ME Consultant one if any of you have seen it. I'm needing to machine several stepped pockets in some AR400 steel plate. Increased production levels at higher feeds and speeds and longer tool life in high heat applications are the primary benefits. need a little help feeds/speeds in ar400. This product is intended for applications where a good combination of abrasion. 350 mm 3/8 in. , for turning on a lathe). Feed rate is calculated using the following equation: Feed = N x T x Z. If you're not taking a lot of material out then the number of flutes isn't a concern, I've used 4 flute cutters when finish milling pocket walls. 95. Carbide – Depth of Cut . When you go deeper per cut you need to change the feed rate a little since the cutting edges now do more work, vs tip only when doing 0. Machinability can help us to determine whether a type of material is suitable for CNC machining services. However it seems the Speeds and Feeds I'm using are not doing too well in tool longevity/noise/smell. 254 RPM = 7. 008 non-metal and plastic – 1500. Be sure to keep the drill at full feed when exiting and re-entering the hole. SFM: Tool Diameter: RPM: = Surface Feet per Minute: RPM : Tool Diameter: SFM: = Revolutions Per Minute: IPM (Drilling) IPR:A basic Feeds and Speeds Chart like what’s in your tooling catalog is a 2 dimensional entity. If they don’t click the “Getting Started” button near the top right corner of the G-Wizard window. N = number of cutting edges (flutes) T= chip load (chip per tooth) is the amount of material, which should be removed by each tooth of the cutter as it rotates and advances into the work. Optimizing feed rates and speeds: 1. 005" per tooth or probably about 50 ipm on your machine. We use the same or similar feeds and speeds to machine them all. The base steel around the weld rapidly heats and cools during welding, resulting in a heat affected zone (HAZ) with high hardness. Feeds and speeds are copied from similar Carbide 3D tooling for MDF and are untested: User-Amana. 3MM Tip. T-1 steel, unlike AR400, is an alloy steel covered by ASTM A514 / A514M - 05 (2009) Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding. Choose speed setting #1 (16k RPM) Try 1200mm/min, keep plunge/DOC as-is and see how that works out. Start conservatively and increase speed and feed until drilling cycle is optimized. Feed Rate = 25000 * 2 flutes * . Click Here to find the right drill size for you reamer. 02 mm) Tool: 1/32. 05 DOC. 16,000 (RPM) x 1 (cutting edges) x . Machining AR400 steel plate. Using these speeds & feeds as a starting point, cutting conditions can be gradually adjusted until the optimum settings for the application are found. 125”) diameter cutter instead of a ¼” (. Section 1 – Main parameters: Cutting speed, feedrate, Feed per Tooth, spindle speed, and table feed. The "speeds" part of the speeds and feeds calculator is the rotation speed of either the tool (e. 5" wide x 20" long 1" thick AR-400 plates that need a centered slot cut completely through them 3. I’m wondering how hard i can push the Onefinity and what it may be able to handle. They are time savers, especially for larger size holes. com website, you can access this tool online and open it in your browser. Don’t forget to lubricate while working with stainless steel. For a given tool and workpiece material, there is a range of recommended cutting or surface speeds between the two materials. I decided a good place to start would be to look at manufacturer data on the end mills I have, and get a ballpark using one of the calculators. Start off using an RPM derived for the chip load for the material being cut (see charts). 95. Face Mill Speeds and Feeds. 5" wide x 20" long 1" thick AR-400 plates that need a centered slot cut completely through them 3. I’ve done some reading here and elsewhere online about feeds and speeds and getting myself up to speed. As you may note, cutting speed is shown in range terms. I didn't think I would be, but I admit I'm totally overwhelmed at learning feeds and speeds. Alpharetta, Georgia 30004. 053 14 GA 0. Tubular feed support frame as standard AR400 Hopper Feeder belt with 1050mm (42”) Twin hydraulic drive feed conveyor Undercarriage with heavy duty tracks Pinless deployment Fully protected power unit with easy access for service and maintenance Stage 3A/ Tier 3: CAT 4. I have some 5/8" solid carbide endmills that i would like to try a trochodial tool path with, basically just for practice and to test this kind of tool path. 010-0. 254 RPM = 12. 150” Speed 260 brazed, 330 throw-away Feed . 006 Recommended Feed Rate: . 5. Calculate the Speeds and Feeds of Carbide End Mills, Diamond End Mills, and Plastic Cutting Carbide End Mills with these General Machining Guidelines. I haven't had a desire to really push the machines to see what they can do but I'm sure some people have. To help me get started I'm using one of those downloadable programs. They give you ranges that are tough to interpret when you just want the answer. 80 IPM / (16,000 RPM x 1 Edge) = . If you play with the formulas enough you will notice that you can get the same Chip Load with different Feed or RPM numbers. The speed and feed are just ridiculous; something like 800 to 1000 rpm and maybe 10ipm feed with lots of coolant should work. 002] and stepdown [0. Surface Speed (SFM) FEED PER REVOLUTION BY DRILL DIAMETER (IPR) 1/16" 1/8" 1/4" 1/2" Low Carbon Steel 1018, 12L12, 1108, 1213 ≤ 120 5374 250 0. I'm. The premier source of tooling, parts, and accessories for bench top machinists. 005 IPR. 053 14 GA 0. For the feed rate per revolution, please set up within the recommended feed rate of the closest diameter appropriately. Determine the spindle speed (RPM) and feed rate (IPM) for a milling operation, as well as the cut time for a given cut length. Julien (Julien) November 9, 2022, 7:45am 2. 8 in/min with 0. 6 48 130 72 127 0. 5 85 129 122 127 0. Tubular feed support frame as standard AR400 Hopper Feeder belt with 1050mm (42”) Twin hydraulic drive feed conveyor Undercarriage with heavy duty tracks Pinless deployment Fully protected power unit with easy access for service and maintenance Stage 3A/ Tier 3: CAT 4. AR400 steel target, exceptional portability and . 0625" wide by half inch deep. 3. 006 2 2. 072mm/teeth. 0016 (. 0063 (Pitch / 8) Z axis move for full thread 0. G-Wizard's Feeds and Speeds for V-Bits assume a rigid holder, but you can double the feedrate if you have a spring-loaded holder. The Wiki feeds and speeds are either a specific example from someone’s project or copied from an older set of feeds and speeds: docs. They give you ranges that are tough to interpret when you just want the answer. Now, a typical 1/8″ carbide endmill might have a total chipload allowance of 0. * Feeds and Speeds are starting points for Overall Lengths of 4” and shorter. Worked fine. 050 sfm 215 feed . Throw away those old speeds and feeds charts and pdfs. AR400F is produced through austentizing, water quenching, and tempering. High Speed – Depth of Cut . AR400 steel is a high-carbon alloy steel that is specifically designed for abrasion and wear resistant applications. When feed rates approach the 0. Remember, runout (mentioned above) and deflection are additive. 170 mm 1/4 in. 22 rimfire use. 5 inches and has a 6 inch diameter target face. I’d like to cut some hardwoods like mahogony with. Feedrate about . 4 flute mill. Given the surface speed, you can calculate the spindle. G-Wizard’s cutting physics engine considers nearly 60 variables. And, I’m not 100% sure where I can download the profiles for the feeds and speeds for these endmills. I've learned how to turn SFM into RPM and find a Feed speed in inches. 012 ipr limit, the cutting speed should be reduced. Drilling operations are those in which a cutting tool with sharp teeth, such as a twist drill, rotates and feeds into the workpiece axially, forming a hole with a diameter equal to. 020" High Speed tooling Milling sfm 35-65 feed . Now I usually trust FSWizard for flat end mill and twist drill feeds/speeds. 15 -> MRR 1. Using these speeds & feeds as a starting point, cutting conditions can be gradually adjusted until the optimum settings for the application are found. 0. Hammer tip speeds up to 22,000 feet per minute (112 meters/second). 077 5/8 Edge Start 13 146 16. 2-0. Aluminum Titanium Nitride (AlTiN) coatings are harder than Titanium Aluminum Nitride. Abrasion resistant. When applying oil manually (as in the lab), scale the feed and speed back to 60%, so N = 330 rpm and f = 2. I have a 4. The carbon content provides strength and hardness, while the manganese. , for drilling) or the workpiece (e. Liberal amounts of a good coolant are essential. The feed rolls on each side have these worn gripper strips that need replacing. The HyPerformance ® HPR400XD ® plasma system has been designed and built for maximum performance and productivity in X-Y, bevel, and robotic cutting operations. Handwheels: 90 mm OD, 8 mm bore. As a result, customers can expect longer-lasting wear parts in some of the toughest applications. 500SFM X 3. 4 mm per inch so 25. IPM = inches per minute IPT = inches / tooth. The main cylinder has a mid-trunnion mount for superior strength, balance and longevity. 82) / Diameter of the Tool. 020" radial on a necked version hanging out 3" overall from. Chip Load = The amount of material removed, per revolution per cutting edge. Machinability can help us to determine whether a type of material is suitable for CNC machining services. Altering the Chip Load or RPM settings in any way without prior written approval from an authorized agent of CGC/Gorilla Mill will void any guarantee or warranty nor will CGC/Gorilla Mill or its agents be liable for any. In most standard cases choosing a speed in the middle of the range would be a good choice for a start. Feeds and speeds and calculators are a good starting point but it all depends on what the machine can actually handle. Compared to E70T-4, they offer slightly lower deposition rates of up to 30 pounds per hour, but they offer a smoother welding arc and Charpy impact toughness properties. ) * 1,500 1,500 1,500 1,500 1,500Thanks everyone. Tangential velocity on the surface of the tool or workpiece at the cutting interface. No chart will. Will take about 5 hours overall. 5deg pressure angle. It's on an already built unit so I can't substitute. The Brinell Hardness Number (BHN) is the technical difference between AR400, AR450, and AR500. The speeds and feeds should be calculated before you ever turn on the machine. OVO345 Plastic. Questions? Contact Cleveland technical support at 888-434-8665. 95. You might see some differences from what is. The maximum cutting speed depends on the type of coating on the tool and the maximum temperature it can safely withstand. I'm needing to machine several stepped pockets in some AR400 steel plate. 0040 0. 010-0. Will take about 5 hours overall. Number of Teeth = The number of edges, facets, or flutes. 75 inches diameter. Quick Links . The first plate I cut was fine the angle was fine, but it looks blistered. AR400 steel has a variety of benefits that makes it an ideal substitute for almost any application where excessive wear is a problem and ease of fabrication is needed. If you are wondering what are feeds and speeds with CNC routers, and why are feeds and speeds important, this video tutorial explains feeds and speeds for th. Work at a slower speed and higher feed than if you were machining 304. 2020. To get maximum output, it is advisable to adjust the feed rate in accord with the cutting speed and depth. Please reach out to our customer support team! 855-828-2106. Then go play with G-Wizard a bit. Speeds and feeds for your austentic stainless will suffice for annealed A2 machining. Optimizing feed rates and speeds: 1. 5" wide x 20" long 1" thick AR-400 plates that need a centered slot cut completely through them 3. General Info About A588 Steel. I assume the spring-loaded holder helps cushion the V-Bit's delicate tip from undue shocks and lets it sort of find its own feedrate that works by backing off the depth if there is too much force involved. 2mm DoC. al. Create a tool for side cutting HIGH or Side cutting LOW. May 5, 2023. Regularly $84. This would be in the range of a typical cnc router. 82 / . I have a customer that has a large wood chipper. This velocity is called the "feed" by machinists. The main results are the cutting speed and feedrate, secondary results such as power consumption and operation time, and carbide grade recommendations. New and popular video trendsAR400 Steel Plate AR400 Steel Plate – Hardness 360-444 Brinell. 5 Same as above. 0008─. The premier source of tooling, parts, and accessories for bench top machinists. Each, however, can also be considered and analyzed in its own. Introduction . Hardox® 450 is an abrasion-resistant brand with a hardness of 450 bhn. And, depending on the machining application and workpiece material, feed rates in excess of 0. However, the recommended surface. I'm predrilling it using a . 6km/h OPTIONS • 6mm AR400 steel wear feedboot liners • 20mm rubber wear feedboot liners • Feedboot extension c/w steel wear linersI am using a Techniks Nexus . Using a ⅛” (. 4, WOC 0. 008 non-metal and plastic – 1500. Easy Speeds And Feeds only serves as a starting point and educational site. Power Route 1/4" 2 flute at 24000 rpm (max speed) on MDF is 172. 9. Mechanical Properties Hardness 360-440 BHN Yield Strength 140 ksi Drilling with HSS bits isn't bad. The chart includes a range of materials, cutting operations, and corresponding recommended feed rates and spindle speeds. The 30hp variable volume piston pump provides maximum oil flow and power throughout the baling process, resisting the dramatic loss of power and500 ft/min. I will be using it primarily to cut guitar bodies (basswood, alder, mahogany…etc). GoodCalculators. Dive into the world of spade drill bits, and explore their design, usage, and. 012 ipr limit, the cutting speed should be reduced. Here CNCLATHING. 6 48 130 72 127 0. 1. MMPM = RPM X number of teeth X CLF X MMPT. Peripheral feed (mm/min) (inch/min) Radial depth of cut (mm) (inch) Tool center feed (mm/min) (inch/min) Feed per tooth (mm) (inch) Thread milling with a roll into cut tool path, D vf1. Drilling holes in Hardox and other similar wear plates is a specialist task and requires the right equipment and setup. I have a 4. Its tensile strength ranges from 155,000 to 180,000 psi, while its Brinell hardness ranges from 360 to 440, depending on the thickness of the steel. com is the easiest speeds and feed cacuator to use. For a 0. Seems a bit fast. So for my . Calculations use the desired tool diameter. AR400F is produced through austentizing, water quenching, and tempering. Spade Drill Speeds and Feeds. Cermets should not be used for rough copy turning. AR400 steel is an abrasion-resistant steel with high levels of carbon and manganese. Algoma recommends the following milling speeds, feed rates, etc. 5) Machine rigidity. I was hoping someone could get me in the ballpark with a feedrate. Spade Drill Speeds and Feeds and Ultimate Guide. Not commercial, just for me. 5" wide x 20" long 1" thick AR-400 plates that need a centered slot cut completely through them 3. Alro Industrial Supply specializes in cutting tools, abrasives, coolant and MRO supplies. Always use the correct drill size when drilling the hole before you ream it. 06 0. I have some 5/8" solid carbide endmills that i would like to try a trochodial tool path with, basically just for practice and to test this kind of tool path. Joined Oct 31, 2007 Location Miami Fl, USA. 0008─. I'm using an older Hurco KMB-1 that's in. 1416 x Part Diameter, Divided by 12 x RPM HORIZON CARBIDE TOOL, INC. Titanium Aluminum Nitride (TiAlN) coatings are high-performance coatings used for all types of materials. Surface Speed (SFM) calculate from the cutting speed of the closest diameter. 5" wide x 20" long 1" thick AR-400 plates that need a centered slot cut completely through them 3. 25 cutting diameter increase feed and speed Blue material box indicates coolant is required for proper operationx-speed, carbide multi flute extended reach fine pitch roughing end mill view speeds and feeds data x-speed, carbide multi flute extended reach fine pitch roughing end mill - inch od: sd: loc: oal: lbs: corner: flute: edp no. Cut dry, air blast or MQL with your TiAlN carbide mills. Extremely loud; no doubt of hits and misses. A bunch of 1-1/8" holes. According to the chart, if the sum of runout and chipload is just 0.