Highcool 71-Piece Bit Driver Set, Master SAE/Metric, 1/4", 3/8" and 1/2" Drive, and CrV Steel, Includes E4-E24, Drill/Driver Adapter

The foundation is constructed from treated Vanadium Steel, and the tip is composed of Alloy Steel, which ensures strength and longevity Set Includes: 33pcs drill bits: 1/4"Dr.: 5/64", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 2mm, 2.5mm, 3mm, 4mm, 5mm, 5.5mm, 6mm; 3/8"Dr.: 9/32", 5/16", 3/8", 7/16", 1/2", 7mm, 8mm, 9mm, 10mm, 11mm, 12mm; 1/2"Dr.: 9/16", 5/8", 11/16", 3/4",14mm, 15mm, 17mm, 19mm; 7pcs adapters: 1/4" to 3/8", 3/8" to 1/4", 3/8" to 1/2", 1/2" to 3/8" Adapter, 1/4" to 1/4", 3/8", 1/2" dr. Impact Drill Adapter; 14pcs screwdriver bits: 1/4"Dr.: E4, E5, E6, E7, E8; 3/8"Dr.: E10, E11, E12, E14, E16, E18, E20; 1/2"Dr.: E22, E24; 17pcs bits: 1/4"Dr.: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30; 3/8"Dr.: T40, T45, T47, T50, T55; 1/2"Dr.: T60, T70 Clear contrast and specific size marking for . It helps you the size more easily It is essential for working , motorcycles, bicycles, lawn mowers, appliances, machinery, etc. It includes and handy storage case. Keep each component in the place. All items meet or ANSI standards