The most popular screwdriver bits, nut drivers and socket adaptors are included in this convenient set and will handle most do-it-yourself projects. Comes with a compact drive guide for quick and convenient changes with 1 in. insert bits. Bits are hardened and tempered for maximum life and performance. Comes in a durable locking case to keep your bits organized.1 magnetic Drive Guide1" Bits:P0, P1, 5-P2, P3SL #4, #6, #8, #10, #12Hex: 3/32 1/8 5/32 3/16 1/4 9/32SQ0 SQ1 5-SQ2 SQ3TX10 TX15 TX20 3-TX25 TX27 TX303-1/2 P2 POWER BIT2" Bits:P1 3-P2 P3SL: #4 #6 #8 #10 #12HEX: 5/32 3/16 1/4SQ1 3-SQ2 SQ3TX10 TX15 TX20 TX25NUT DRIVERS:3/16 1/4 5/16 3/8 7/16 1/2SOCKET ADAPTORS1/4" 3/8" 1/2"