Fractional Diameter 9/16 Decimal Diameter 0.5625 Bolt Diameter 1/4 Neck Diameter 17/64 Number of Teeth 6 Overall Length 2 19/32 Shank Diameter 1/2 Tool Width 15/64 Undercut Length 35/64 Weight 0.15 lbs 272008Type 2720Stock: Call Us For Stock Status.$169.95 Category: 2720-F