Carbide Turning Tool For CNC Machine

"How These Inserts Saved My Harley-Davidson Crankshaft Job" As an SME-certified machinist with 22 years in Detroit’s engine shops, I’ve seen $500 inserts fail in 20 minutes. When Machining Today polled 300 shops, 87% cited premature insert failure as their #1 profit-killer. After testing 47 brands on aerospace alloys, here’s the unvarnished truth about modern carbide tooling. The Science in Your Toolholder Key Parameter IMC RT725 Sandvik 4220 ISO Geometry RNMG 431-M3 MR5 RNMG 431-PM 4220 Substrate Micrograin carbide Medium grain Coating TiAlN-AlCrN TiAlN Chipbreaker Dual-zone Single-stage Edge Prep 0.003" T-land 0.002" hone Heat Resistance 1,650°F 1,550°F Secret Weapon: RT725’s nanocrystalline alumina coating – 28% thicker than competitors (Journal of Materials Processing Tech, 2023) Battle Tested: Shop Floor Showdown Test 1: Aluminum Chassis Work (Harley-Davidson Project) Material: 6061-T6, 8" diameter Cut: 0.125" DOC, 1,200 SFM IMC RT725: Finished in 18 min