CDI Torque Products 61NSM 1/4" Torque Screwdriver 10-80 CNM Micro-Adj.

Used for applying torque in low torque applications, such as electronic assembly manufacturng medical devices, etc. Available in adjustable models, or factory preset to a single torque value. Ergonomic tri-lobe handle design.

Features:

• Positive locking pull down adjustment knob
• Trilobular comfort grip
• Universal 1/4" hex bit holder with strong rare earth magnent
• Cam-over torque limiting clutch
• Easy-to-read window scale
• Light weight
• Automatic lock in CCW direction for disassembly
• Accuracy 6% of indicated value, CW, from 20% to 100% of full scale
• Individually serialized with matching certificate of calibration traceable to N.I.S.T.
• Meets or exceeds ASME B107.14 - 2004

Specifications:

• Torque Range: 10-80 cNm
• Increments: 1 cNm.
• W x L Inches: 1.1 x 5.5
• Weight: 6.8 oz.

Proper Wrench Selection:

- The more critical the torque requirement, the more accurate the wrench should be (electronic torque wrenches are more accurate)

- Choose a torque wrench that has roughly twice the capacity of the torque being applied. For example, for an application of 100ft lbs, choose a 200ft lbs wrench. If a 200ft lb. wrench is not available, then a 250ft lb would work as well.

- The "sweet spot" of a torque wrench is between 40% and 80% of the maximum scale. For a 250ft lb. wrench, this would be between 100 and 200ft lbs.

- Avoid using a wrench that will be used at the bottom of the scale and also at the top of the scale. Mechanical torque wrenches are typically calibrated from 20% to 100% of full scale.