Desker 4 Flute Solid Carbide End Mill Extra Long 150mm Overall Length Anti-Vibration High Toughness Pre-Hardened Mold Steel

12*12*60*150 4F Desker is professional extra long reach 4-flute solid carbide square end mill independently developed by Desker, specially designed for deep narrow cavity layered roughing and semi-finishing of various pre-hardened mold steel. Equipped with D12 consistent straight shank, 60mm long effective cutting flute and 150mm ultra-long overall length, symmetrical 4 spiral flutes provide balanced rigidity and smooth chip evacuation during long-overhang deep milling. The ultra-fine grain carbide substrate with TiAlN nano coating resists high-temperature wear and micro chipping under deep cutting load. Widely applied on vertical CNC machining centers for plastic injection mold deep core, die casting mold deep cavity, blow mold and mechanical fixture deep groove mass milling production.

• Ultra-fine grain solid tungsten carbide blank, integral forming without welding, high bending strength, effectively reduces deflection and chatter vibration under long overhang deep cutting
• 4 symmetrical equal-divided spiral flutes design, uniform cutting force distribution, stable machining precision, balances large-volume chip removal and surface smoothness for semi-finish processing
• D12 consistent straight shank, full contact clamping with ER32/ER40 collets, high concentricity, avoids tool runout causing dimensional tolerance deviation in deep cavities
• 60mm extended effective cutting edge, supports multi-layer stepped deep milling in one single tool, reduces frequent tool change downtime and improves mold workshop processing efficiency
• 150mm extra total length long reach structure, smoothly access deep narrow blind cavities and deep side grooves unreachable by standard short-length end mills
• Nano TiAlN multi-layer PVD coating with strong bonding force, outstanding heat insulation and anti-adhesion performance, prevents mold steel chip sticking and tool flank wear
• Optimized large-angle spiral chip groove, smooth curved channel quickly discharges large curled metal chips, avoids chip accumulation scratching mold cavity finished surfaces
• Square sharp cutting corner with micro edge honing treatment, enhances edge impact resistance to resist micro chipping during mild interrupted layered deep milling of uneven forged blanks

P20, 718H, S50C, NAK80, STAVAX pre-hardened mold steel, medium carbon structural steel, low alloy forged steel blanks

• Machining Operations
  • Deep blind cavity layered rough milling, narrow deep side groove semi-finish profiling, long overhang deep core stock removal, mild interrupted mold blank deep milling
• Mass Production Workpieces
  • Plastic injection mold industry: Auto interior large mold deep core, household appliance deep cavity mold layered high-efficiency milling
  • Die casting mold industry: Aluminum alloy die casting deep mold core, mold frame deep groove rough & semi-finish batch processing
  • Blow mold industry: Large plastic container deep cavity blow mold long reach layered milling mass production
  • Mechanical fixture workshop: Deep positioning groove fixture mold, multi-layer deep cavity forming mold continuous milling
  • Auto mold manufacturing: Bumper deep rib mold, instrument panel deep core high removal rate rough semi-finish production