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Screw Chuck Screwdriver Set

Well-constructed, precision screwdrivers with replaceable blades that are held firmly in the handle by means of screw chucks. Blades are made of the best quality tool steel, which has been heat treated for roughness and long wear. Have hexagonal swivel heads which will not roll on bench. The bodies are plated. All are approximately 3-1/2" overall and weigh 1 oz. each.