ITEM NAME:Er16 Spring Collet Chuck Sets,65Mn Spring Steel Precision Collet End Mill H J8W4 Er16 Spring Collet Chuck Sets,65Mn Spring Steel Precision Collet End Mill H J8W4 come with excellent mechanical properties after heat treating:Heat resistant,low temperature resistant,oxidation resistant,corrosion resistant,and extremely resilient Widely application:ER16 collet set widely used in machining centers,boring,milling,drilling,tapping,engraving,CNC,spindle machines,and other processing Good quality:These spring collet set with good elasticity,big clamping force and wide clamping range,high precision,Run-Out Tolerance:0.012MM(0.0005 inch) Size:1mm,2mm,3mm,3.175mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,total 11pcs collet for your choose Holder Spring Collet Set fit for Drilling Machine,Milling Machine CNC Chuck or Holder and CNC milling Lathe Tool&Workholding Engraving machine Special angled slots increase rigidity Better overall balance of tool holder assembly Model:ER16 Quantity:11pcs Highly clamping force,wide clamping range,high accuracy. Color:black+silver Material:carbon steel Package Contents: 11* collet.Widely application:ER16 collet set widely used in machining centers,boring,milling,drilling,tapping,engraving,CNC,spindle machines,and other processing. Holder Spring Collet Set fit for Drilling Machine,Milling Machine CNC Chuck or Holder and CNC milling Lathe Tool&Workholding Engraving machine.