... , BT, DIN69871 shank. 3)size:50,40,30 4)balanced tool holder G6.3/12000rpm available We are a leading supplier ... of various machinery accessories.We can supply collet,tool holder,vise,sleeve etc.1)Runout: 0.005mm2)Material:High ... plastic mould box4)Balanced tool holders on request. G6.35)Shell end mill holders, drill chuck arbors, sleeves, boring head shanks etc.