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High-Torque Black Oxide Blade Nut Driver Set, 6-Piece (1/4-3/8 in., 7-10 mm)

Nut Driver Sizes

The exact color of the black oxide blade finish may vary.


Apply High Torque

The handle's three-sided geometry directly engages the structure of your hand, instead of relying on friction with your skin, so you can apply high force with less fatigue.

One hand holding a High-Torque Nut Driver
Two hands spinning a High-Torque Nut Driver

Spin Fasteners Quickly

Round sections at the front and back ends of the handle allow you to spin long, finely threaded fasteners quickly and continuously.

High-Torque screwdriver gripping surface

Durable, Nonslip Handle

The overmolded grip provides a nonslip surface that is permanently bonded to the handle and won't degrade or become sticky over time.

  • Extreme Temps
  • Gas &
  • Oils &
  • Cleaners & Solvents
High-Torque Markings - Nut

Easy-to-Read Markings

Tip type and size are printed on the end of the driver for easy identification.

6-Point Socket

A minimum 1 inch recess inside the shaft accommodates excess threaded tails of long bolts or studs

Materials and Construction

High-Torque Nut Driver

AISI 4037 Steel Shaft

  • Strong alloy steel hardened to HRC 41–46
  • Black oxide finish—keep lightly oiled for best corrosion protection

Polypropylene Handle

  • Reinforced with calcium carbonate for dimensional stability
  • Shore D 68 durometer

Overmolded Grip

  • Soft thermoplastic elastomer (TPE)
  • Shore A 80 durometer
Driver Blades are Insert Molded

Insert Molded for Exceptional Strength

We use a molding process that forms the handle around the blade, rather than forcing the blade into a premade handle. The result is a straighter blade that can’t twist out.


High-Torque Black Oxide Blade Nut Driver Set, 6-Piece (1/4-3/8 in., 7-10 mm)

Country of Origin
United States
Item Weight
1.53 lb.