Hikoki 41pc Impact Socket and Bit Set 752500 This is the best value kit available. Used by our own workshop and staff alike. Set includes: ½” square drive Impact sockets - 8, 10, 11, 12, 13, 14, 17, 19, 21, 22mm ¼" hex screw driving bits - #1 Phil, #2 Phil, #3 Phil, PZ1 PZ2, PZ3 Pozi, T10, T15, T20, T25, T27, T30, T40, TH10, TH15, TH20, TH25, TH27, TH30, TH40, 3 Hex, 4 Hex, 5 Hex, 6 Hex 6, Slotted 3, Slotted 4, Slotted 5, Slotted 6, Quick change magnetic bit holder Adapter ¼” hex to ½” square Adapter ½” square to ¼” hex Includes pin/retaining ring socket retainer system (ring + pin, type 1 and type 2) Heavy duty case