SuSuMu is specialized in R&D, manufacturing, sales of screwdriver bits, power tool accessories, hand tools, tool accessory sets In setting the bar high to ensure quality products. Product Content 42pcs impact power bits and 1pcs Magnetized Box Product Content: 2×T20 Torx; 2×T25 Torx; 2×T30 Torx; 2×T40 Torx; 10×PH2 phillips 4 inch; 4×PH2 phillips 2 inch; 2×H3 hex head; 2×H4 hex head; 2×H5 hex head; 2×H6 hex head; 2×R1 square 1×R2 square; 2×R3 square 1×SL4 slotted; 2×SL5 slotted; 2×SL6 slotted; 2×Magnetized Box; 1×Gift Box. The most commonly used sizes you'll encounter in construction, home improvement, work shop, home appliance. This bit set comes with a handy storage clip so you'll never lose one of these drivers on the job.