Collet Replacement High Hardness Sharpener M20 Thread Chuck Grinding Machine Accessories1/83.175mm

1、Mount the chuck on the tool of the corresponding diameter which can be well matched with the hand tool. 2、The clamping force is strong and the clamping accuracy is 0.02mm which is suitable for fine operation. 3、Made of high-quality materials the hardness is HRC40-45 which is not easy to squeeze and wear. 4、The collet size is standard the thread is accurate and it is not easy to fall off after installation. 5、The collet is integrally formed with a long total length and is suitable for installation on a knife sharpener.