DeWALT 3/16 X 6-1/2 SDS-Plus 2-Cutter Hammer Drill Bit 25-Pack DW5403B25DeWALT *25 Pack* DW5403B25 (DWAF5403B25) 3 16 X 6 1 2 (25 PK) SDS + 2 Cutter Item: Rotary Hammer Drill Overall Length: 6 1 2 in Shank Shape: SDS Plus Shank Size: 25 64 in Drilling Length: 4 in For Use With Drills: Rotary Hammer Percussion Rated: Yes Bit Dia.: 3 16" Number of Cutter Heads: 2 Impact Rated: No Drill Bit Size: 3 16 in For Tool Type: Hammer Drill Shank Type Machining: SDS Plus Decimal Equivalent: 0. 1875 Measurement System: Fractional Inch