CMT ER40 Precision Collet 20 mm Inside Diameter 41 mm Outside Diameter

The CMT Orange Tools ER40 Precision Collet with 20 mm inside diameter ensures secure tool holding for CNC and heavy-duty routing applications. Precision-ground for accurate runout and reliable clamping force, this larger collet maintains consistent cutting performance. The 41 mm outside diameter fits standard ER40 collet chucks. Essential for professional machinists demanding accuracy and durability.