Gearwrench 89620 20 Piece 1/4 Inch Drive Torque Screwdriver Set 10-50 in/lb Range Locking Adjustment Collar Nut Driver Bits Electrical Service Kit

Master Precision Electrical Connections with Professional Grade Torque Accuracy

The GEARWRENCH 89620 20 Piece 1/4" Drive Torque Screwdriver Set is a specialized precision instrument designed specifically for electrical service, industrial assembly, and sensitive equipment maintenance. Providing a critical torque range of 10 to 50 in/lb, this tool ensures that electrical connections and fasteners are tightened to exact manufacturer specifications, preventing the risks associated with under-tightening or stripped threads. The screwdriver features a solvent-resistant co-molded handle that offers a comfortable, non-slip grip even in oily environments, while the high-visibility scale markings allow for rapid, error-free adjustments on the fly.

Engineered for efficiency and durability, this set includes a versatile array of 19 specialized bits and long nut drivers, all crafted from high-strength alloy steel with a black phosphate finish for superior corrosion resistance. The integrated locking adjustment collar secures your desired torque setting to prevent accidental changes during high-repetition tasks, and the 1/4" quick-release bit holder makes swapping between Phillips, Slotted, and Square drives seamless. Meeting or exceeding ASME B107.300 standards, this set is housed in a rugged blow-mold case, making it an essential addition to any professional electrician’s or technician’s mobile diagnostic kit.

Key Features

• Precision Accuracy: Delivers a torque accuracy of +/- 6% in a clockwise direction for critical fastening.
• Locking Adjustment Collar: Safely locks in your specific torque setting to ensure consistency across multiple fasteners.
• High-Visibility Markings: Easy-to-read scale allows for precise increments of 1 in/lb.
• Quick-Release Bit Holder: Universal 1/4" drive tang allows for rapid bit changes and compatibility with standard 1/4" hex bits.
• Professional Durability: Solvent-resistant handle and alloy steel construction built for the rigors of industrial use.
• Compliance Standards: Meets or exceeds ASME B107.300 and ANSI load/cycle requirements.

What's Included

• (1) 1/4" Drive Torque Screwdriver (10-50 in/lb)
• (7) Long Nut Drivers: 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2"
• (4) Phillips Bits: #1 (x2), #2 (x2)
• (4) Slotted Bits: 3/16" (x2), 1/4" (x2)
• (4) Square Bits: #1 (x2), #2 (x2)
• (1) Heavy-Duty Blow Molded Storage Case

Specifications

Pro-Tip: To maintain the accuracy of your torque screwdriver, always turn the setting back to the lowest value (10 in/lb) before storing it in the case. This relieves the internal spring tension and ensures the tool stays within calibration for its next use.