Cat40 20Mm Hydraulic Chuck (Short & Rigid), 2.54" Gage Length, 25,000 Rpm Balanced With Ad/B Coolant Supply. Yg1 Part # Wk102snr. The Use Of Reduction Sleeves Greatly Improves The Usefulness Of A Hydraulic Chuck. Clamp Directly On The Cutting Tool Shank Or Use A Reduction Sleeve To Hold A Different Diameter Tool Shank And Increase Transferable Torque By Approximately 25%. The Reduction Sleeve Outside Diameter Must Match Your Hydraulic Chuck's Nominal Inside Diameter. Reduction Sleeves Are Available In 6 Different O.D.S; 1/2", 3/4", 1-1/4", 12Mm, 20Mm & 32Mm For Clamping Tool Shanks From 1/8" To 1" & 3Mm To 25Mm.

• CAT Taper Shank Per ASME B5.50-2009-CAT
• AT3 Or Better Accuracy On Shank Tapers
• Concentric To 0.00012" T.I.R (At 3XD)
• AD/B Coolant Supply: Coolant Thru The Spindle & DIN Coolant Thru The Flange.
• Balanced At G2.5 To 25,000 RPM

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