Collets and Sleeves HC Hydraulic Chuck Sleeves (HC Hydraulic Chuck Sleeves continued) Metric with Inch Bores 20HC 32HC D = 20mm D = 32mm D2 = 25mm D2 = 36mm D1 L1 = 50mm L1 = 60mm 3/16 20HCM0188 — 1/4 20HCM0250 — 5/16 20HCM0312 — 3/8 20HCM0375 — 7/16 20HCM0438 — 1/2 20HCM0500 32HCM0500 9/16 20HCM0562 32HCM0562 5/8 20HCM0625 32HCM0625 11/16 — 32HCM0688 3/4 — 32HCM0750 7/8 — 32HCM0875 1 — 32HCM1000 Inch with Metric Bores 50HC 75HC 12HC D = .500 D = .750 D = 1.250 D2 = .630 D2 = .984 D2 = 1.417 D1 L1 = 1.575 L1 = 1.969 L1 = 2.362 3,0 50HC030M 75HC030M — 4,0 50HC040M 75HC040M — 5,0 50HC050M 75HC050M — 6,0 50HC060M 75HC060M — 8,0 50HC080M 75HC080M — 10,0 50HC100M 75HC100M — 12,0 — 75HC120M — 14,0 — 75HC140M — 16,0 — 75HC160M 12HC160M 18,0 — — 12HC180M 20,0 — — 12HC200M 25,0 — — 12HC250M Inch with Inch Bores 50HC 75HC 12HC D = .500 D = .750 D = 1.250 D2 = .630 D2 = .945 D2 = 1.417 D1 L1 = 1.575 L1 = 1.969 L1 = 2.362 1/8 50HC0125 75HC0125 — 3/16 50HC0188 75HC0188 — 1/4 50HC0250 75HC0250 — 5/16 50HC0312 75HC0312 — 3/8 50HC0375 75HC0375 — 7/16 — 75HC0438 — 1/2 — 75HC0500 12HC0500 9/16 — 75HC0562 12HC0562 5/8 — 75HC0625 12HC0625 11/16 — — 12HC0688 3/4 — — 12HC0750 13/16 — — 12HC0812 7/8 — — 12HC0875 1 — — 12HC1000 NOTE: Inserting the cutting tool less than the full gripping length (L9) of the sleeve can permanently damage the sleeve and hydraulic chuck. Full length of the gripping bore needs to be maintained to achieve maximum accuracy, safety, and coolant sealing feature. WWW.WIDIA.COM I5 Collets and Sleeves