The Faithfull 4 Piece Impact Nut Driver Set is engineered for high-torque fastening with impact drivers. Each nut driver features a black phosphate finish for added durability and resistance to wear. Supplied in four popular sizes, this set is ideal for mechanics, engineers and construction professionals.

• For loosening or tightening nuts and bolts particularly where high torque and heavy duty performance is required
• 6/8/10/13mm diameters
• 1/4in shanks ideal for impact drivers
• Black phosphate surface finishing