Bits are for screw removal only. Can be used with electric impact drivers. Bit Drive: 1/4in Hex (6.35mm). Includes 10 assorted bits SECTION 10 - PERSONAL INFORMATION. You agree to indemnify, defend and hold harmless J and B Tool Sales and our parent, subsidiaries, affiliates, partners, officers, directors, agents, contractors, licencors, service providers, subcontractors, suppliers, interns and employees, harmless from any claim or demand, including reasonable attorneys?.