±0.1 l Ref TGMF (full radius) Utility Double-Ended Full Radius Inserts for External and Internal Grooving and Profiling W R Dimensions Tough 1  Hard Recommended Machining Data a p f turn f groove Designation W ±0.05 R ±0.05 l T max-r IC830 IC8250 IC808 IC20 IC5010 IC428 (mm) (mm/rev) (mm/rev) GROOVE-TURN TGMF 315 3.00 1.50 13.50 11.40 • • • • • 0.00-1.50 0.18-0.26 0.07-0.13 TGMF 420 4.00 2.00 17.80 14.90 • • • • • • 0.00-2.00 0.20-0.34 0.09-0.17 TGMF 525 5.00 2.50 17.75 14.30 • • • • • 0.00-2.50 0.23-0.42 0.11-0.21 TGMF 630 6.00 3.00 22.15 18.30 • • • • 0.00-3.00 0.24-0.50 0.13-0.25 • Can cut arcs to 250° • Dmin for internal application=20.5 mm • For cutting speed recommendations and user guide, see pages 340-351 For tools, see pages: TGDR/L (230) • TGHN 26-M (300) • TGHN-D (231) • TGHN-S (231) • TGIR/L-C (300) • TGPAD (230) l2 GHMR/L h h Toolholders for Shallow Radial h4 and Axial Grooving with Narrow l1 Tmax and Special Profile Inserts f b W Right-hand shown Designation W max T max-r T max- a h b l 1 l 2 f h 4 GHMR/L 12 4.00 4.80 4.80 12.0 12.0 110.00 25.0 10.8 4.0 SR 76-1021 T-20/5 GHMR/L 16 4.80 4.80 4.80 16.0 16.0 115.00 25.0 14.5 - SR M6X16 DIN912 HW 5.0 GHMR 16-3 ST (1) 5.00 4.80 4.80 16.0 16.0 78.00 25.0 15.0 - SR M6X16 DIN912 HW 5.0 GHMR/L 20 6.40 4.80 4.80 20.0 20.0 125.00 25.0 18.5 - SR M6X16 DIN912 HW 5.0 GHMR/L 25 6.40 4.80 4.80 25.0 25.0 140.00 25.0 23.5 - SR M6X16 DIN912 HW 5.0 GHMR/L 32 6.40 4.80 4.80 32.0 32.0 150.00 25.0 30.2 - SR M6X16 DIN912 HW 5.0 • Use for recessing: light turning, small depth of cut (ap=0.1-0.5 mm) and small feed (f=0.1 mm/rev) • For user guide, see pages 340-351 (1) For Star and multi-spindle machines For inserts, see pages: GIA-K (W=3-6) (254) • GIF (253) • GIF (full radius) (254) • GIF-E (W=4-6 full radius) (250) • GIF-E (W=4-6) (248) • GIG (252) • GIM-C (402) • GIM-J (403) • GIM-J-RA/LA (403) • GIM-UT (404) • GIM-UT-RA/LA (404) • GIM-W (403) • GIM-W-RA/LA (404) • GIMF (244) • GIMN (245) • GIMY (245) • GIMY (full radius) (246) • GIMY-F (247) • GIP (252) • GIP (flat top W