R type Lathe & Milling Chuck

3-jaw caliper inside design, lock pin handle pull into end, then easy to lock 

the drawbar (if pin did not pull to end of bottom it might can not take out drawbar,

in case it happened just use the Rubber Hammer to knock the end of handle, then it can release again.

attached with pulling handle and plastic box

dia. 110mm x 36mm (exclude the position block)

not only for lathe but also for Milling

it can suit for CNC Milling & Lathe