Collet Chuck Holder Chrome Molybdenum Alloy Steel Straight Extension Rod ER11A-100L(C20 )

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、The nuts can be tightened directly with high rigidity and strong clamping force 4、Available in four styles for choices: C10 C12 C16 C20 5、Suitable for ER11A chuck which is convenient to install