Sharpener Chuck M20 Thread Grinding Machine Elastic Collet Fastener Replacement 122mm16mm

1、The chuck has a large clamping force which can be clamped quickly and operated stably. 2、The hole diameter and thread have high accuracy standard size and it is not easy to fall off after installation. 3、The 122mm lengthened design is convenient for installation and removal on tools. 4、Made of high?quality and high?hardness materials anti?impact and wear?resistant and can be used for a long time. 5、Different size specifications have different clamping ranges which is more practical.