SANGANG-SELF-TIGHTEN CHUCK-HEAVY DUTY

1.Self-tighting feature automatically increase gripping force proportion to increase torque to prevent tool shank slippage;

2.Positive lock mechanism prevents chucks from loosening in operation when suddenly stopped of in the reverse operation;

3.High precision,and high gripping force,high reliability and stability;

4.Flimsy parts are shaped by quenching;

5.The chuck can be attached with a loosed key.It can be used when the clamping force was too strong.