De Walt-DT-Impact-Screwdriver-Bits-PH1-PH-2-PH3-25-50mm-Packs-of-5-Dewalt-DT7993-QZ-This-pack-of-5-impact-screwdriver-bits-from-De Walt-are-a-key-addition-to-any-tradesman-s-toolbox-as-they-are-manufactured-with-a-durable-hex-shank-to-fit-all-impact-drivers-The-full-hex-design-provides-increased-strength-&-life-while-the-optimised-tip-design-reduces-slip-These-bits-are-impact-specific-&-can-be-used-in-all-heavy-duty-screwing-applications-De Walt-DT7993-QZ-Impact-Screwdriver-Bit-PH1-