A 0.005 A AT3 Taper 58-60 HRc L BT-SEM-C SS L1 L2 1 2 (a) ISO 3937 Shell Mill Holders with G2.5 Coolant Holes and BT MAS-403 ADB d D1 BT 40= 20,000RPM BT 50= 15,000RPM Tapered Shanks U<1.0 gmm G kg Designation SS d D 1 L L 2 L 1 G Fig. BT40 SEM 16X100C 40 16.00 38.00 100.00 17.00 73.0 M16 1.57 1 BT40 SEM 16X60C 40 16.00 38.00 60.00 17.00 33.0 M16 1.21 1 BT MAS-403 BT40 SEM 22X100C 40 22.00 47.00 100.00 19.00 73.0 M16 2.03 1 BT40 SEM 22X60C 40 22.00 47.00 60.00 19.00 33.0 M16 1.10 1 BT40 SEM 27X100C 40 27.00 58.00 100.00 21.00 73.0 M16 2.44 1 BT40 SEM 27X45C 40 27.00 58.00 45.00 21.00 18.0 M16 1.32 1 BT40 SEM 32X60C 40 32.00 66.00 60.00 24.00 33.0 M16 1.84 1 BT50 SEM 16X100C 50 16.00 38.00 100.00 17.00 62.0 M24 4.00 1 BT50 SEM 16X75C 50 16.00 38.00 75.00 17.00 37.0 M24 3.82 1 BT50 SEM 22X100C 50 22.00 47.00 100.00 19.00 62.0 M24 4.30 1 BT50 SEM 22X48X220C (1) 50 22.00 48.00 220.00 19.00 182.0 M24 5.98 2 BT50 SEM 22X61X320C (1) 50 22.00 61.00 320.00 19.00 282.0 M24 9.91 2 BT50 SEM 22X75C 50 22.00 47.00 75.00 19.00 37.0 M24 4.00 1 BT50 SEM 27X100C 50 27.00 58.00 100.00 21.00 62.0 M24 4.72 1 BT50 SEM 27X60C 50 27.00 58.00 60.00 21.00 22.0 M24 3.96 1 BT50 SEM 27X61X320C (1) 50 27.00 61.00 320.00 21.00 282.0 M24 9.78 2 BT50 SEM 32X100C 50 32.00 66.00 100.00 24.00 62.0 M24 5.04 1 BT50 SEM 32X75C 50 32.00 66.00 75.00 24.00 37.0 M24 4.50 1 BT50 SEM 32X78X390C (1) 50 32.00 78.00 390.00 24.00 352.0 M24 16.66 2 • (a) For coolant through flange the plug screw must be removed from the flange cooling hole (use a 2 mm hex key) (1) Symmetrical design. However, the family's balance values are not guaranteed for this tool 994 978-979 981 SS A 0.005 A AT3 Taper 58-60 HRc BT-FC-SEM-C Shell-End Mill Holders with Coolant d D1 G2.5 G Holes and BT MAS-403 Face SK 40= 20,000 RPM SK 50=15,000 RPM Contact AD Tapered Shanks U<1.0 gmm L1 L2 L Designation SS d D 1 L L 2 L 1 G BT40 FC SEM16X60C 40 16.00 38.00 60.00 17.00 34.0 M16 BT40 FC SEM22X60C 40 22.00 47.00 60.00 19.00 34.0 M16 BT40 FC SEM22X120C 40 22.00 47.00 120.00 19.00 94.0 M16 BT40 FC SEM27X45C 40 27.00 58.00 45.00 21.00 19.0 M16 BT40 FC SEM32X60C 40 32.00 66.00 60.00 24.00 34.0 M16 BT40 FC SEM32X75C 40 32.00 66.00 75.00 24.00 49.0 M16 BT50 FC SEM16X75C 50 16.00 38.00 75.00 17.00 38.5 M24 BT50 FC SEM16X120C 50 16.00 38.00 120.00 17.00 83.5 M24 BT50 FC SEM22X75C 50 22.00 47.00 75.00 19.00 38.5 M24 BT50 FC SEM27X60C 50 27.00 58.00 60.00 21.00 23.5 M24 BT50 FC SEM27X105C 50 27.00 58.00 105.00 21.00 68.5 M24 BT50 FC SEM32X60 C 50 32.00 66.00 60.00 24.00 11.5 M24 BT50 FC SEM40X60 C 50 40.00 82.00 60.00 27.00 11.5 M24 BT-FC Face Contact Taper Face Contact Standard Spindle Spindle Face Contact Standard Holder Holder 906 ISCAR 978-979 981 982