Hardened and tempered hammer through screwdrivers built to withstand repeated hammer blows tang through design transmits the striking force from the striking cap straight through to the tip hexagonal shaft for use with a spanner for additional torque impact resistant mixed polymer handle includes slotted 5 x 75mm 6 x 100mm 8 x 150mm 8 x 200mm pozidriv pz2 x 100mm pz3 x 150mm