Starrett A2-1 SDS+ Plus Shank Arbor With HSS Pilot Drill For 32-210mm Hole Saws The Starrett SDS Plus Shank allows arbors to be used in SDS Plus rotary hammer drills with the hammer action facility turned off. Fitted with a 6.35mm (1/4\") high speed steel pilot drill. FEATURES Fits hole saw diameter 32-152mm / 1.1/4-6\" Allows the arbors to be used in SDS Plus rotary hammer drills with the hammer action facility turned off Fitted with a 6.35mm (1/4\") carbide tipped pilot drill Recommended for use with specific Diamond Grit Holesaws Easy replacement of pilot drill SPECIFICATION Pack Quantity: x1 Pc Part No: A2-1 Fits Hole Saw Diameter: 32 - 210mm Fits Chuck Size: 13mm Shank Size: 11mm Screw Thread: 5/8 - 18 Drill Length: 79mm