Our hex tap bolts meet our exceed ASTM A307 Grade A

1/2 x 13 ITM SDS Max Hammer Drill Bit

6 x 2 1/4 Phillips Bugle Decking Screws Dacrotized - Carton (3000)

15/64 Cobalt Heavy Duty Jobber Drill Bit

7/8 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank) 18" Aircraft Bits - Fractional Our hex tap bolts meet7 8 x 6 Reduced Shank Drill Bit Cobalt (1 2 Shank) . Expands the size range capacity of a 1 2 inch portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Precision ground for high degree of concentricity between shank and body diameter. Ideal for drilling in low and medium tensile strength materials.