Threading Technology – Clamping Technology 520

262 Thread Mills GF UNC UNF UN M MF NPSF Rp (BSPP) G W BSW, BSF NPT NPTF Rc (BSPT) STI BGF ZBGF GSF (Aero) GSF-Z GF(I)-KEG ZGF(I) CIRC-GF Gigant FPC, FMC MoSys SELF-LOCK Accessories Tech. Info v c / f z GF(I), GF-Z GF-Vario-Z GF-H Product Finder Right-Hand Spiral Flutes GFI Straight Flutes GF Right-Hand Spiral Flutes GF Right-Hand Spiral Flutes, Long Design GF Inch Shank Metric Shank Metric Shank Metric Shank Page UNC 264 UNF 265 UN 266 267 M 270 271 274 272 273 MF 271 274 272 273 G (BSP), Rp (BSPP), W 279 279 280 280 NPSF 282 LK-M, LK-MF 283 1 / 4 P 1 P 1 / 4 P Face chamfer with/without cutting face AZR/AZ (alternating teeth) Remove incomplete thread IKZN (internal coolant supply exiting in the flutes) Recessed neck Coolant grooves along the shank For a description of these modifications, see page 357 Thread milling cycle GFI, GF, GF-Z Possible modifications