U2 Collet M20 Thread, Universal Grinding Machine Collet Chucks CNC Tool Parts

Clampping strong,Use widely,Hight precison

Collet material: 65Mn

Clamping part hardness: HRC55-60

Elastic zone hardness: HRC40-45

Collet total length: 122mm

Collet end diameter: 28mm

Tail thread size: M20

Tail thread length: 29mm

Light rod diameter: 20mm