Precision Instruments M3R250F 1/2" Drive Micrometer Adjustable Click Torque Wrench 50-250 ft-lbs/b> Engineered, precision bearing surfaces extend the calibrated life of the M line to as many as 60,000 cycles or more and ensure the most reliable performance possible. In addition to flawless operation at release, calibration is completely external, unlike traditional mechanism that require disassembly and the replacement of blocks and shims. Extremely Accurate-Accurate within 3% of reading from 20% of full scale to full scale clockwise and counterclockwise. Guaranteed against defect in workmanship and materials for 1 year from the date of delivery providing that they have been used according to instructions.Exclusive Patented Calibration Mechanism-This patented mechanism allows for calibration in both the clockwise and counter-clockwise directions, plus with regard to spring rate, without the disassembly of the wrench. This protects against contamination of the working mechanism, and make calibration quick and easy.Exclusive Patented Roller-Release - This patented feature removes over 95% of the friction inherent in other click wrenches thereby extending life and providing for more reliable operation.All "M" Series meets or exceeds all applicable requirements of: ANSI / ASME B107.14M, GGG-W-00686C, BS6073: 1988, ISO6789Specifications:Ratchet type: Fixed ratchetRange: 50-250 ft-lbs/li>Graduations: 1 ft-lbs/li>Length: 22 1/2"3% accuracy from 20% of full scale to full scale in both the clockwise and counter-clockwise directions.Effective Length at 20% of Full Scale: 22.00"Effective Length at Full Scale: 21.00"Maximum Overall Length: 24.75"Minimum Overall Length: 23.75"Weight: 4.1 lbs.Weight w/plastic case: 5.7 lbs.Finish: Nickel / ChromeMeets or Exceeds the following Specifications: GGG-W-686C, ANSI B107.14MThis item may not be available for same day shipments. Please contact us by phone if you need expedited service on this item. If expedited shipping is selected the item will be shipped once it is available.Entire Precision Instruments line available - call 1-888-220-8350 for pricing on additional model numbers.All returns on Precision Instruments products have a 10% restock fee.
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