Ko-ken RS20XXZ/9 1/4 Sq. Dr. Bit Socket set PH, SL, HEX Z-series 9 pieces. Drive: 1/4″ internal square Phillips 1, 2, 3 slotted 5, 6 internal hexagon 3, 4, 5, 6 Phillips, slotted, internal hexagon Surface: chrome plated + zinc phosphated Material: chrome molybdenum + special bit steel.








