The OEMTOOLS 24147 37 Piece Magnetic Bit Set is a drilling and driving bit kit with everything you need for everyday jobs. The durable heat-treated alloy steel screwdriver tips are easy to use and built to last, while deep steel etching makes each of your bits instantly identifiable as you work. A smooth satin finish protects your magnetic bits from dirt, corrosion, and wear, making these bits easy to wipe clean and store. For long lasting performance that gets the job done time after time, look no further than the OEMTOOLS 24147 37 Piece Magnetic Bit Set. This multi purpose magnetic screwdriving set includes all the bits that are indispensable when working on cars, machinery, household appliances, and electronic devices and more. Phillips: #0, #1, (2) #2 bits; #3 Slotted: (2) SL5, (2) SL6, (2) SL7 bits; Posidrive: #1, (2) #2, #3 bits; Star: T10, T15, T20, T25, (2) T30, (2) T40 bits; Hex: (2) 3 millimeter, (2) 4 millimeter, (2) 5 millimeter, (2) 6 millimeter; Square: SQ2, SQ3 1/4 Inch Nut Driver Bits 46 millimeter: 1/4 inch, 5/16 inch; 1/4 Inch Drive Coupler