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• Collet Chuck accepts all ER16 collets
• Works on all CAT 40 machines
• Threaded for stop screw type 1 (not included)
• All critical surfaces precision ground
• Made from alloy steel hardened to 54 - 56rc
• Balanced to G2.5 at 20,000 rpms
• Gage length is 3.0 Inches
• Concentricity is less than .0001 at collet face
• Rear thread for pull stud is 5/8—11
• Collet nut is included
• Mini Collet Nut is slimmer than standard collet nut
• ER16 Mini Nut has an id thread of 19mm X 1.0 pitch. Outside diameter is .866 inches (22mm)
• Must use ER16M collet wrench
• Coolant through capability
• MariTool Part# is CAT40-ER16-3.0M