14Pieces Power Nut Driver Bit Set

Specifications: Material: chrome vanadium steel

Hex shank length: 2.2cm

Hex shank diameter: 1/4 inch (6.35mm)

Inner diameter:SAE(7pc): 3/16''(4.76mm), 1/4''(6.35mm), 9/32(7.14mm), 5/16''(7.94mm), 11/32''(8.73mm), 3/8''(9.525mm),7/16''(11.11mm)

Metric(7pc): 5, 5.5, 6, 7, 8, 10, 12mm

1PC Bit Holder 

Material:chrome vanadium steel

Length:60mm

Hex shank diameter:1/4 inch (6.35mm)

Inner diameter:1/4 inch (6.35mm)

Quantity: 1 Set