5/8x12 sds pls drill bit. Carbide-tipped drill bit head is harder and more resistant to extreme loads. 4-flute design for fast dust removal. For use in drills requiring SDS-plus shanks. Shank Type: SDS-Plus, Length: 12", Overall Diameter: 5/8" No. HC2122: Shank Type: SDS-Plus, Length: 8", Overall Diameter: 3/4" No. HC2124: Shank Type: SDS-Plus, Length: 12", Overall Diameter: 3/4" No. HC2127: Shank Type: SDS-Plus, Length: 18", Overall Diameter: 3/4" No. HC2147: Shank Type: SDS-Plus, Length: 18", Overall Diameter: 7/8" No. HC2167: Shank Type: SDS-Plus, Length: 18", Overall Diameter: 1"