GS Tooling 531006 CAT40 5/16 x 1.38 End Mill Holder

• Shank Type: Taper Shank • Taper Size: CAT40 • Hole Diameter (Inch): 5/16 • Nose Diameter (Decimal Inch): 0.87 • Projection (Decimal Inch): 1.38 • Through Coolant: Yes • DIN Coolant option - standard • All Ground Body • Premium balanced to 30 000 rpm • Comes with certificate