2024 Big sale Collet Chuck Holder Milling Cutter Straight Extension Rod ER20A-100L 100mm LengthC16

1、Made of chrome?molybdenum alloy steel material with high hardness 2、The long handle is suitable for deep hole processing which can solve the need for extended depth processing 3、The product has high rigidity and strong clamping force 4、Variety of models to meet the needs of different processing scenarios 5、Suitable for ER20 chuck which is convenient to install