Knurling Tool Revolving Series 3SHKT Capacity 5/16 in And Up Diamond Or Straight Shoulderless Pattern In And End Feed 6 Wheel - Wheel Size - Square Shank Shank Width (In.) 3/4 Shank Height (In.) 1/2 Shank Length (In.) 2-3/4 Shank Dia (In.) - Head Height (In.) 1-3/8 Head Width (In.) 1-11/16 Head Length (In.) 1-3/8 Head Dia (In.) - Distance To Shoulder (In.) 0.252 Overall Length (In.) 4-1/8 For Use With D-Type Knurl Wheels