ER40 COLLET CHUCK BT TOOL HOLDER  

The commonly used specifications of ER40 tool holder are BT40 and BT50, the length of which is er40-100 and er40-150. Tool holder material: 20CrMnTi is selected as high quality material. After heat treatment, it has better elasticity and wear resistance, high precision, stable performance, wear resistance and durability. BT tool holder,The hardness of the tool holder is 58-60 degrees, and the overall runout accuracy of the cnc tool holder is within 0.008 mm. BT tool holder,Bt Collet Chuck,Mainly used for drilling, milling, reaming, tapping and grinding tool holder use.BT tool holder, The clamping range of ER40 tool shank series is 6mm-26mm, with ER40UM nuts, teeth spacing M50*1.5mm, with ER40 barrel clamp, the speed reaches 20000 revolutions.