Tools for External Turning and Internal Boring S-Style Clamping Boring Bars for Positive Inserts Steel Shank with Through Coolant Steel shank with through coolant. See pages B94–B99 for inserts. „A-SVUB 93° gage insert order number catalogue number D D min F L1 CS insert screw Torx right hand 3883440 A20SSVUBR11 20 25,0 13,0 250 1/8-27 NPT VB..110304 MS1153 T7 3883438 A25TSVUBR16 25 32,0 17,0 300 1/4-18 NPT VB..160408 MS1155 T15 left hand 3883439 A25TSVUBL16 25 32,0 17,0 300 1/4-18 NPT VB..160408 MS1155 T15 widia.com C81