Klein Tools Torque Wrench 57000 3/8 Inch Drive 10 To 100 Foot Pound (Micro Adjustable Quick Release NIST Traceable Calibration)

Klein Tools 57000 3/8-Inch Drive 10-100 Ft-Lb Micro-Adjustable Torque Wrench

The Klein Tools 57000 is a high-precision 3/8-inch square drive micro-adjustable torque wrench engineered for exact fastener tensioning across a 10 to 100 ft-lb (13.6 to 135.6 Nm) working range. Constructed with a heavy-duty stainless steel handle and a 32-tooth ratcheting gear head, this 14.125-inch long, 2.0 lb mechanical driver features a quick-release lever and a dual-scale display for clear torque setting verification. Compliant with ASME standards via an included N.I.S.T. traceable calibration certificate guaranteeing ±4% accuracy, this industrial wrench enables electrical technicians, HVAC installers, and mechanical tradespeople to prevent over-torquing on critical panel bolts, conduit fittings, and mechanical mountings.

Best Used For:

• Electrical Panel & Terminal Lug Bolting: Applying exact foot-pound torque settings on copper lugs and breaker connections to eliminate hot spots and thermal failure.
• HVAC & Refrigeration Compressor Servicing: Torquing compressor heads, mounting bolts, and valve flanges within a 10 to 100 ft-lb capacity range.
• Light Industrial & Machinery Maintenance: Securing precision machine bolts and structural fasteners to exact engineering tension specifications.

Key Performance & Safety Features

• Micro-Adjustable Tension Scale: Delivers precise incremental torque selection from 10 to 100 ft-lb (13.6 to 135.6 Nm) for critical fastening accuracy.
• N.I.S.T. Traceable Calibration: Certified to meet ASME standards with a guaranteed ±4% accuracy rating for regulated industrial compliance.
• 32-Tooth Quick-Release Head: Features a smooth 3/8-inch square drive quick-release button for swift socket swaps on active jobsites.
• Stainless Steel Handle Construction: Ergonomic metal handle profile offers maximum hand leverage, enhanced corrosion resistance, and durable grip control.
• Audible Impulse Click System: Emits a distinct mechanical impulse click when the target torque value is reached to prevent bolt over-tightening.

What's Included

• (1) Klein Tools 3/8" Drive Micro-Adjustable Torque Wrench (10 to 100 ft-lb)
• (1) N.I.S.T. Traceable Calibration Certificate
• (1) Protective Hard Storage Case

Technical Specifications

Pro-Tip: Always reset the torque selection scale to its lowest value (10 ft-lb) before returning the tool to its protective case. Storing the wrench under active tension degrades internal spring calibration over time, leading to premature measurement inaccuracies.