Threading Technology – Clamping Technology 520

282 Thread Mills GF UNC UNF UN M MF Rp (BSPP) G W BSW, BSF NPT NPTF Rc (BSPT) STI BGF ZBGF GSF (Aero) GSF-Z GF-Vario-Z GF-H GF(I)-KEG ZGF(I) CIRC-GF Gigant FPC, FMC MoSys SELF-LOCK Accessories Tech. Info v c / f z Product Finder GF (I), GF-Z NPSF Ordering Example: GF172101.5905 Metric Shank Carbide R30 RH + LH 3-5Flutes DIN 6535 HB HE HA ø D For internal threads l 1 ø d 1 l 2 ø d 2 l 3 NPSF P 60° American Standard Straight Pipe Thread ANSI B1.20.3 Dryseal internal straight pipe thread for fuel, combined with external tapered pipe thread NPTF or PTF-SAE-SHORT; Gage with tapered gages Coating TICN Applications – Material P 1 .1- 3 .1 K 1 .1- 4 .2 N 1 .1-5 N 2 .1-6 N 3 .1- 4 .2, 5 .2 S 1 .1-2 P 1 .1- 3 .1 M 1 .1- 2 .1 K 1 .1- 4 .2 N 1 .1- 2 .7 N 3 .1- 5 .2 S 1 .1-2, 2 .1 Nominal Size ø D T.P.I. inch GF-VHM R30-IKZ-HB GF-VHM R30-IKZ-HB TICN ø d 1 l 1 l 2 l 3 ø d 2 inch mm Flutes 1 / 16 27 0.232 2.480 0.424 1.417 0.315 8 3 GF172101.5904 GF172106.5904 1 / 8 27 0.301 2.480 0.424 1.417 0.315 8 3 GF172101.5905 GF172106.5905 1 / 4 18 0.400 3.150 0.637 1.772 0.472 12 4 GF172111.5906 GF172116.5906 3 / 8 18 0.439 3.150 0.636 1.772 0.472 12 4 GF172111.5907 GF172116.5907 1 / 2 14 0.561 3.543 0.819 1.890 0.630 16 4 GF172131.5908 GF172136.5908 3 / 4 14 0.561 3.543 0.819 1.890 0.630 16 4 GF172131.5909 GF172136.5909 1 11 1 / 2 0.772 4.134 1.000 1.969 0.787 20 5 GF172151.5910 GF172156.5910 NPSF cutters are manufactured with a corrected profile

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