BT DRILL CHUCK ADAPTER 1.material:spring steel 2.specifiactions:BT30-JT2,BT30-JT33,BT40-JT2,BT40-JT33,BT40-JT6,BT50-JT2, BT DRILL CHUCK ADAPTERSpecifications incl udingBT30/40/50---JT2/JT3/JT6We can supply you the products with good quality and competitive price.We are very much welcome your advice and ordered BT-JT Type of DRILL CHUCK ADAPTER