With the Dewalt DT7398T-QZ screwdriver bits, you handle heavy-duty fastening jobs with maximum control and durability. The flexible torsion zone absorbs extreme torque peaks from your impact driver, significantly reducing the risk of bit breakage under heavy loads. Thanks to the precisely machined Torx T30 tip, each bit delivers a snug fit that prevents cam-out and screw head stripping. Featuring a standard 1/4" hex shank and a length of 50 mm, this 5-piece set made of heat-treated steel provides dependable performance for intensive timber construction and jobsite assembly.