Collet Chuck Holder Chrome Molybdenum Alloy Steel Straight Extension Rod ER20M-100L(C16 )

1、Straight-handle extension handle made of chrome-molybdenum alloy steel material with high hardness 2、Suitable for deep hole processing which can solve the need for extended depth processing 3、Nuts can be tightened directly with high rigidity and strong clamping force 4、Variety of models to meet the needs of different processing scenarios 5、Suitable for ER20M chuck which is convenient to install