Hairich 1/2-inch Torque Wrench 10–170 ft·lb (13.6–230 Nm) — ±3% Calibrated, 72-Tooth Ratchet

Hairich 1/2-inch torque wrench delivers precise 10–170 ft·lb (13.6–230 Nm) tightening with a calibrated ±3% accuracy for reliable fastening.

Built for mechanics, installers, and serious DIYers, this Hairich torque wrench combines a durable chrome-vanadium construction with an ergonomic aluminum-titanium handle and a 72-tooth ratchet head. Dual laser-printed scales in ft·lb and Nm let you set target values quickly; an audible and tactile click signals when the preset torque is reached. The tool includes a reversible ratchet, quick-release button, and a locking knob for secure adjustment—making it suited to vehicle maintenance, machinery assembly, and home projects where controlled torque matters.

How accurate and traceable is the torque setting?

The wrench is factory-calibrated with a ±3% error range and each unit carries a serial number so you can track calibration data. Laser-etched dual scales provide clear ft·lb and Nm readings, and the mechanism produces a distinct click when the set torque is reached.

• Calibration tolerance: ±3% across the range
• Range: 10–170 ft·lb (13.6–230.5 Nm)
• Serial number for traceability and record-keeping
• Audible and tactile click at target torque

What materials and design features improve durability and handling?

Primary components are made from chrome-vanadium steel for strength and wear resistance, while the knurled handle uses an aluminum-titanium alloy for grip and reduced fatigue. The 72-tooth ratchet requires only a 5° swing arc, making it effective in tight spaces and minimizing slippage.

• Chrome-vanadium main body for long life
• Aluminum-titanium square knurled handle for secure grip
• 72-tooth ratchet head with 5° arc for precision in confined areas
• Quick-release button for fast socket changes

How do you set and lock a torque value safely?

To set torque, pull down the lock knob, rotate the handle to the desired value on the dual-scale display, then release the knob; it rebounds to lock the setting. During use, the wrench clicks when the preset torque is reached—stop applying force at that moment to avoid over-tightening.

• Pull lock knob to adjust torque
• Dual ft·lb and Nm laser printing for easy reading
• Automatic lock knob rebound secures the value
• Bidirectional measurement for clockwise and counterclockwise tasks

What jobs is this torque wrench best suited for?

This model is versatile for automotive work, machinery installation, electrical assemblies, and bicycle or motorcycle maintenance. It’s sized to handle lug nuts, spark plugs, and general fastener torque requirements without frequent recalibration for common workshop tasks.

• Automotive: lug nuts, engine work, wheel installs
• Mechanical assembly: bolts on machines and frames
• Bikes and motorcycles: axle and component torque
• Electrical and industrial fastening where controlled torque is needed

Who is this for: The Hairich 1/2" torque wrench is intended for professional mechanics, service technicians, and experienced DIY enthusiasts who need a robust, accurate tool for medium-to-heavy fastening tasks. If you require reliable torque control, readable dual scales, and a durable ratchet mechanism that performs in tight spaces, this tool fits workshops, garages, and on-site service kits. Hairich backs the tool with a 24-month warranty and customer support for calibration or product concerns, making it a practical option for users who want traceable accuracy and commercial-level durability.