About this item

• This 20pcs nut drive set is forged from high hardness chrome vanadium steel. The surface is treated with anti-corrosion sand blasting. After the whole high temperature quenching heat treatment, the product has high hardness and is durable.
• 10PCS SAE：5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2.
• 10PCS Metric: 4mm,5 mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm.
• The sleeve uses a universal 1/4 "hex shank for a variety of quick-change chucks, various flashlights, and screwdrivers.
• Its widely used in electric drills, screwdrivers, impact drills, household DIY, auto parts, woodworking, professional machinery maintenance and other fields.