20 PCS Power Nut Driver Set Impact Drill 1/4 Hex Head Drill Bit Set 39 PCS NEW

• This 39pcs 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.

• The sleeve uses a universal 1/4 "hex shank for a variety of quick-change chucks, various flashlights, and screwdrivers.

• The leaflet design head fastener with rounded edges grabs the nut from the side rather than the corner to prevent peeling and extend the life.

• 15pcs magnetic nut driver(65mm),20pcs nonmagnetic nut driver(35mm),3pcs drill bit adapter and 1pc drill bit extension.

• Its widely used in electric drills, screwdrivers, impact drills, household DIY, auto parts, woodworking, professional machinery maintenance and other fields.