The XTrade X0900016 Screwdriver Bit & Magnetic Holder Set is of professional quality, in a case with a belt clip The XTrade Screwdriver Bit Set has 30 colour coded bits for easy selection, in all the popular sizes. The set is S2 Trade Quality for durabilty, S2 alloy steel is a shock-resisting tool steel type. Also includes a square bit adapter, magnetic bit holder and a storage case with flip top and belt clip. Set Contains: 2 x PH1, 6 x PH2, 2 x PH3 2 x PZ1, 6 x PZ2, 2 x PZ3 1 x SQ1, 1 x SQ2 1 x TX15, 1 x TX20, 1 x TX25, 2 x TX30, 1 x TX40 1 x SL5.5, 1 x SL6.5 1 x 1/4" Hex to 1/4" Square drive bit adaptor 1 x 65mm Quick Release Locking Magnetic Bit Holder Storage case