GearWrench Micrometer Torque Wrench 85174 3/8 Inch Drive 30 to 250 Pound Precision Clicker (120XP 3 Degree Swing Arc Accuracy Engine Fastening)

GearWrench 85174 3/8" Drive 120XP™ Micrometer Torque Wrench (30-250 in-lbs)

The GearWrench 85174 3/8-inch drive 120XP™ micrometer torque wrench tightens and calibrates critical fasteners across a precise 30 to 250 in-lb torque range with certified +/- 3% clockwise accuracy. Engineered with proprietary double-stacked pawl technology, this precision clicker wrench delivers a minimal 3-degree swing arc from its 120-tooth ratchet mechanism, enabling technicians to torque hardware inside highly restricted vehicle compartments. Outfitted with an enclosed low-profile teardrop head to resist contaminant ingress, high-contrast stamped micrometer scale markings, and a knurled aluminum handle with a tactile center reference line, it equips automotive mechanics, transmission rebuilders, and aerospace technicians with audible and tactile click confirmation to prevent over-tightening delicate alloy castings and engine components.

Best Used For:

• Transmission Valve Body and Pan Torquing: Fastening sensitive hydraulic valve plates, transmission solenoid bolts, and oil pan hardware to exact inch-pound specifications without warping housings.
• Motorcycle and Small Engine Cylinder Head Assemblies: Setting precision fastener tension on aluminum intake manifolds, valve covers, camshaft caps, and motorcycle engine crankcases.
• Electronic Sensor and Fuel Rail Fastening: Torquing delicate manifold absolute pressure sensors, ignition coil bolts, and high-pressure fuel rail brackets to prevent thread galling and gasket leaks.

Key Performance & Safety Features

• 120XP™ Extreme Access Head: Double-stacked 60-tooth pawls engage alternating teeth to produce a tight 3-degree ratcheting arc for turning fasteners in extreme clearances.
• Certified +/- 3% Clockwise Calibration: Meets high industrial precision standards in the upper 80% of tool capacity for exact torque verification.
• Enclosed Ratchet Mechanism: Sealed teardrop head architecture protects internal gears and pawls from abrasive dust, road grime, and shop fluids.
• High-Contrast Stamped Scale: Laser-etched primary scale in 1 in-lb increments enables fast, error-free torque setting adjustments under bright or dim shop lighting.
• Knurled Aluminum Midpoint Grip: Diamond-knurled grip barrel provides non-slip hand traction in oily conditions with an indexed center line for optimal leverage placement.
• Audible & Tactile Click Impulse: Delivers a crisp sensory release click when reaching the target torque limit, eliminating fastener over-torquing and bolt snapping.

What's Included

• (1) GearWrench 85174 3/8" Drive 120XP Micrometer Torque Wrench (30-250 in-lbs)
• (1) Heavy-Duty Injection-Molded Storage Case with Removable Lid
• (1) Protective EVA Foam Tool Insert

Technical Specifications

Pro-Tip: To maintain internal spring calibration and ensure ongoing +/- 3% accuracy across years of use, always wind the micrometer adjustment sleeve back down to its lowest setting (30 in-lbs) before storing the torque wrench in its hard case.