Description: C25 ER32 150L Straight Shank Collet Chuck Holder 25mm Fixed CNC Millling Toolholder   Specifications: Model: C25-ER32UM-150L Spring collet type: ER32 Material: 40Cr Wrench: 22cm Size: 20x5cm Quantity: 1pc   Using Step: 1. the first set into the collet nut、 and then directly to the tight、 high steel、 strong clamping force. 2. straight shank type extension handle、 the handle body is longer、 suitable for deep processing、 extend the processing depth to solve. 3. to reduce the use of extended tool、 can reduce cost、 improve efficiency. 4. extension rod diameter、 and other parts are through precision grinding、 can eliminate the unbalance、 increase the safety of cutting.   Package included: 1x Wrench 1x Collet Chuck   More Details: