Master Mechanic, 100 Piece, Screwdriver & Bit Set, 23 Screwdrivers: Slotted: 1/8" x 3", 5/32" x 4", 3/16" x 3", 3/16" x 4",1/4" x 4",1/4" x 6", 5/16" x 6" Philips: Ph0 x 3", Ph1 x 3", Ph1 x 4", Ph1 x 6", Ph2 x 4", Ph2 x 6" Tor x : T8 x 3", T10 x 3", T15 x 3", T20 x 3", T25 x 4", T30 x 4" Square: S0 x 3", S1 x 3", S2 x 4", S3 x 6", Ratchet Handle, 2 Offset Screwdriver: Ph1 x 3/16", Ph2 x 1/4", 6 Nut Driver Bits:1/4, 9/32, 5/16, 11/32, 3/8, 7/16", 8 Precision Screwdriver: 3/32" x 2", 1/8" x 2", Ph00 x 2", Ph0 x 2", T6 x 2", T7 x 2", T8 x 2", T10 x 2", (60) 1" CRV Bits: Slotted:1/8, 9/64, 5/32, 11/64, 3/16, 7/32, 1/4,17/64, 9/32, 5/16", Pozidriv: 0,0,1,1,2,2,2,3,3,3, Philips: 0, 0, 1, 1, 2, 2, 2, 3, 3, 3, Tor x : 6, 8, 10, 15, 20, 25, 27, 30, 35,40, He x : 1/16, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16", 2, 2.5, 3, 4, 5, 6, Square: 0, 1, 2, 3, 2, 2.5, 3 Screwdriver Blade & Precision Screwdriver Blade, 6 Nut Driver Bits 1/4, 9/32, 5/16, 11/32, 3/8 & 7/16".