Threading Technology – Clamping Technology 520

342 High Precision FPC Milling / Thread Milling / Drilling Chucks 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), GF-Z GF-Vario-Z GF-H GF(I)-KEG ZGF(I) CIRC-GF Gigant MoSys SELF-LOCK Accessories Tech. Info v c / f z Product Finder Ordering Example: 6491.301409 * Caution: tool does not have a safety zone. Be sure to check for tool changer interference before using. ! Note: Mechanical drive torque wrench must be set at max. 7.38 ft lbs / 10 Nm Accessories FPC Collets and accessories   345 - 348 Pull studs available upon request new Shank Size mm EDP Number Size ø D 2 Design ø d 1 ø d 2 l 1 l 2 l 4 l A inch mm FPC 14 1 / 8 - 9 / 16 2 - 14 SK 30 A 30 50 11 28 73 92 6491.301409 SK 40 A 30 50 11 28 43 63 6491.401406 SK 40 A 30 50 61 78 93 112 6491.401411 SK 40 A 30 50 85 103 129 149 6491.401414 SK 50 A 30 50 11 28 43 63 6491.501406 SK 50 A 30 50 85 103 129 149 6491.501414 FPC 20 1 / 8 - 3 / 4 2 - 20 SK 30 A 40 50 20 28 73 92 6491.302009 SK 40 A 40 50 20 28 43 63 6491.402006 SK 40 A 40 50 69 78 93 112 6491.402011 SK 40 A 40 50 94 103 129 149 6491.402014 SK 50 A 40 63 18 38 43 62 6491.502006 SK 50 A 40 63 84 104 129 149 6491.502014 FPC 25 5 / 8 - 1 1 / 4 16 - 32 SK 40 B 63 – – 14 83 102 6491.402510 * SK 50 B 70 – – 15 83 102 6491.502510 FPC SK Shank DIN ISO 7388-1 (formerly DIN 69871 AD, DIN 69871 B) FPC ≤3µm AT3 G2.5 20000RPM IKZ l A l 4 l 2 l 1 ø D 2 ø d 1 ø d 2 Design A l A l 4 l 2 ø D 2 ø d 1 Design B Fine balanced design and ultra slim design available upon request Length stop available upon request Description of the symbols, see page 348 FPC , FMC