Bodee CAT40 Shank End Mill Holder: 1/4" Hole Diameter, 2.5" Projection, 5.187" Overall Length, 20000 RPM @ G2.5 Balanced, 0.00012" TIR

Works on all CAT 40 Machines This End Mill Tool holder accepts all 0.25 shank tooling All critical tool holder surfaces precision ground Made from alloy steel hardened to 48-52rc Gage length is 2.5 inches Nose diameter is 0.812 Inches Concentricity is less than 0.00012 Rear thread for pull stud is 5/8-111. Hole diameter 1/4", H5 Hole Tolorance