Fractional Diameter 25/32 Decimal Diameter 0.7812 Bolt Diameter 3/8 Neck Diameter 13/32 Number of Teeth 6 Overall Length 3 1/4 Shank Diameter 3/4 Tool Width 21/64 Undercut Length 55/64 Weight 0.41 lbs 272112Type 2721Stock: 4.$228.25 Category: 2721-F