Flange Port Th1 DR-4D-T L1 L4 Rear Port Indexable Insert Drills for Non-Rotating L Applications with Coolant Holes and D Th dh6 D3 One Flat Shank, Drilling Depth 4xD Designation D D max (1) L L 1 L 4 d D 3 T h T h1 Insert DR140-056-20-05-4D-T 14.00 15.90 56.0 77.0 50.0 20.00 27.70 NPT 1/4-18 NPT 1/16-27 SOMX 05 DR160-064-20-05-4D-T 16.00 17.90 64.0 82.0 50.0 20.00 27.70 NPT 1/4-18 NPT 1/16-27 SOMX 05 DR180-072-25-06-4D-T 18.00 20.90 72.0 94.0 56.0 25.00 32.00 NPT 3/8-18 NPT 1/16-27 SOMX 06 DR210-084-25-07-4D-T 21.00 24.90 84.0 109.0 56.0 25.00 32.00 NPT 3/8-18 NPT 1/16-27 SOMX 07 DR250-100-32-09-4D-T 25.00 27.90 100.0 133.0 58.0 32.00 42.00 NPT 1/2-14 NPT 1/16-27 SOMT 09 DR280-112-32-09-4D-T 28.00 30.90 112.0 144.0 58.0 32.00 42.00 NPT 1/2-14 NPT 1/16-27 SOMT 09 DR310-124-32-09-4D-T 31.00 31.90 124.0 157.0 58.0 32.00 42.00 NPT 1/2-14 NPT 1/16-27 SOMT 09 DR320-128-32-09-4D-T 32.00 32.90 128.0 161.0 58.0 32.00 42.00 NPT 1/2-14 NPT 1/16-27 SOMT 09 DR330-132-32-12-4D-T 33.00 34.90 132.0 169.0 58.0 32.00 50.00 NPT 1/2-14 NPT 1/16-27 SOMT 12 DR350-140-32-12-4D-T 35.00 39.90 140.0 177.0 58.0 32.00 50.00 NPT 1/2-14 NPT 1/16-27 SOMT 12 INDEXABLE DRILLS DR400-160-40-12-4D-T 40.00 44.90 160.0 197.0 68.0 40.00 50.00 NPT 3/4-14 NPT 1/4-18 SOMT 12 DR450-180-40-16-4D-T 45.00 51.90 180.0 215.0 68.0 40.00 60.00 NPT 3/4-14 NPT 1/4-18 SOMT 16 DR520-208-40-16-4D-T 52.00 55.90 208.0 243.0 68.0 40.00 60.00 NPT 3/4-14 NPT 1/4-18 SOMT 16 DR560-224-40-16-4D-T 56.00 57.90 224.0 259.0 68.0 40.00 60.00 NPT 3/4-14 NPT 1/4-18 SOMT 16 DR580-232-40-16-4D-T 58.00 58.90 232.0 267.0 68.0 40.00 60.00 NPT 3/4-14 NPT 1/4-18 SOMT 16 DR590-236-40-16-4D-T 59.00 60.00 236.0 271.0 68.0 40.00 60.00 NPT 3/4-14 NPT 1/4-18 SOMT 16 • Hole tolerance D+0.35/-0.05 in average conditions. However it can be higher or lower according to machine and tooling conditions • For eccenter sleeves, see page 537 • For user guide and cutting conditions, see page 529 (1) The hole diameter can be enlarged by shifting the drill center along the lathe X-axis, or by using eccentric sleeves in drill rotating applications For inserts, see pages: SOGX/T-AL (528) • SOMT-DT (528) • SOMT-GF (528) • SOMT-HD (528) • SOMX-DT (527) • SOMX-GF (527) • SOMX-HD (527) Spare Parts Designation DR140-056-20-05-4D-T SR 34-533/L T-6/5 PLG 1/16PTF PLG 1/4PTF Z C DR160-064-20-05-4D-T SR 34-533/L T-6/5 PLG 1/16PTF PLG 1/4PTF Z C DR180-072-25-06-4D-T SR 34-508/L T-7/51 PLG 1/16PTF PLG 3/8PTF DR210-084-25-07-4D-T SR 14-560 T-8/53 PLG 1/16PTF PLG 3/8PTF DR250-100-32-09-4D-T SR 34-506 BLD T09/M7-SW4 SW4-SD PLG 1/16PTF PLG 1/2PTF DR280-112-32-09-4D-T SR 34-506 BLD T09/M7-SW4 SW4-SD PLG 1/16PTF PLG 1/2PTF DR310-124-32-09-4D-T SR 34-506 BLD T09/M7-SW4 SW4-SD PLG 1/16PTF PLG 1/2PTF DR320-128-32-09-4D-T SR 34-506 BLD T09/M7-SW4 SW4-SD PLG 1/16PTF PLG 1/2PTF DR330-132-32-12-4D-T SR 14-544/S BLD T15/S7 SW6-SD PLG 1/16PTF PLG 1/2PTF DR350-140-32-12-4D-T SR 14-544/S BLD T15/S7 SW6-SD PLG 1/16PTF PLG 1/2PTF DR400-160-40-12-4D-T SR 14-544/S BLD T15/S7 SW6-SD PLG 3/4PTF PLG 1/4PTF Z C DR450-180-40-16-4D-T SR 76-961 BLD T15/M7 SW6-T PLG 3/4PTF PLG 1/4PTF Z C DR520-208-40-16-4D-T SR 76-961 BLD T15/M7 SW6-T PLG 3/4PTF PLG 1/4PTF Z C DR560-224-40-16-4D-T SR 76-961 BLD T15/M7 SW6-T PLG 3/4PTF PLG 1/4PTF Z C DR580-232-40-16-4D-T SR 76-961 BLD T15/M7 SW6-T PLG 3/4PTF PLG 1/4PTF Z C DR590-236-40-16-4D-T SR 76-961 BLD T15/M7 SW6-T PLG 3/4PTF PLG 1/4PTF Z C 525