Introducing the Stanley Proto micro-meter torque wrench series, these are mechanical torque wrenches used for tightening nuts and bolts to the required specifications. Stanley Proto torque wrenches offer superb accuracy, available in various sizes and calibrated options are available.

Why would you buy theses torque wrenches?

Stanley Proto Micro-meter torque wrenches are the ideal alternative to digital torque wrenches. They are durable and built to a high standard with excellent attention to detail, for example hardened pivot pin for long life, permanently imprinted scale, positive slide collar for easy and reliable setting and machined grooves show correct hand position for best accuracy.

• Metal
• Chrome finish
• Available in 3/8 or 1/ 2 inch drive
• Torque measurement: Newton Metres
• Retains calibration for 30,000 cycles
• Spring design for long wrench life and repeatability
• Positive locking mechanism dial and lock-In desired torque
• Clockwise and counter-clockwise torque capability
• Slim head design
• Audible click and a ’feel impulse’ when desired torque is reached then automatically resets
• Storage case

• Calibrated to +/- 4% clockwise direction and +/- 6% counter clockwise direction at 20% to 100% of full scale.
• Calibration is accomplished by mechanical loading of each wrench in a horizontal position and performing a three click test at 20%, 60%, and 100% of maximum instrument capacity.

Application Information

Torque Wrenches are a type of wrenches/drive designed to apply a specific torque to a fastener. Torque wrenches are usually equipped with a ratcheting mechanism allowing for constant work without refitting the wrench after every turn of the bolt. Speciality Torque wrenches are commonly used by professionals such as car mechanics, engineers, builders and serious DIY enthusiasts.

Approvals & Certification:

All Proto micrometer torque wrenches are certified and calibrated mechanically in the horizontal position.

Is this wrench extendable or is it fixed length?

These torques wrenches are of fixed lengths.

What socket size does it work with?

These torque wrenches are compatible with sockets that have a 3/8 in or 1/ 2 in. drive

What is the torque range of this wrench?

• 1/ 2 in. square drive, 40-200 Nm = RS stock no: 264-2167
• 1/ 2 in. square drive, 70-350 Nm = RS stock no: 264-2173
• 3/ 8 in. square drive, 10 -80 Nm = RS stock no: 264-2189

Torque wrenches are precise measuring devices which require care in handling. Always place tool in storage box after use. Do not use cheater bars, hammers, or any other damaging object. It is recommended that micrometer wrenches are stored at 20% of full reading to maintain accuracy. All torque wrenches should be recalibrated at least once a year or more frequently depending on usage.