Collet

Collet clamp
A cylinder clamp is a precision sleeve that holds a cutting tool and is used in conjunction with a spring chuck handle (ER handle) to secure the tool by tightening it with a nut.
Common types include ER tube clamps
The most commonly used standards (such as ER11, ER16, ER20, ER32, etc., with numbers representing the clamping range).
Wide clamping range (usually capable of clamping tools with a diameter difference of 1mm), strong versatility.

Details