Proto Fixed Head Micrometer Torque Wrenches in./lbs.

• Calibrated to +/- 3% in clockwise direction and +/- 6% in counter clockwise direction
• 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
• Certification documents traceable to N.I.S.T. (National Institute of Standards and Technology). CERT Version Only
• Manufactured to meet precision/highly accurate applications such as military and aerospace

Proto® Fixed Head Micrometer Torque Wrenches in./lbs. Certified

• Calibrated to +/- 4% in clockwise direction and +/- 6% in counter clockwise direction
• 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
• Certification documents traceable to N.I.S.T. (National Institute of Standards and Technology). CERT Version Only
• Manufactured to meet precision/highly accurate applications such as military and aerospace

Proto® Fixed Head Micrometer Torque Wrenches ft./lbs.

• Calibrated to +/- 3% in clockwise direction and +/- 6% counter clockwise direction at 20% to 100% of full scale
• Calibration is accomplished by manual loading the torque wrenches
• Manufactured to meet standard industrial torque applications, general industry, heavy equipment, and maintenance

Proto® Fixed Head Micrometer Torque Wrenches Newton Meters

• Calibrated to +/- 3% clockwise direction and +/- 6% counter clockwise direction at 20% to 100% of full scale
• Calibration is accomplished by manual loading the torque wrenches
• Manufactured to meet standard industrial torque applications, general industry, heavy equipment, and maintenance

Proto® Pre-Set Ratcheting Head Torque Wrenches

• Factory set to a pre-determined torque setting, used for a wide variety of different repetitive torquing applications
• Calibrated to +/- 3% in clockwise direction and +/- 6% in counter clockwise direction
• 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
• Certification documents traceable to N.I.S.T. (National Institute of Standards and Technology). CERT Version Only
• Manufactured to meet precision/highly accurate applications such as military and aerospace

Proto® 1″ Drive Fixed Head Micrometer Torque Wrench 200-1000 ft./lbs. J6023

• Includes an extension handle
• Torque wrench is 40″ long. Weight and over all length are for torque wrench with the extension handle
• Packaged in a metal box for easy storage
• Calibrated ± 4% of torque reading clockwise and ±6% counter clockwise at 20% to 100% of full scale
• Certified wrenches to ±2% one direction are available upon request

Proto® 1″ Drive Fixed Head Micrometer Torque Wrench 400-2000 ft./lbs. J6025

• Includes two extension handles, each 43″ long
• Torque wrench is 34-1/4″ long. Weight and overall length are for torque wrench assembled with both extension handles
• Calibrated ±4% of torque reading clockwise at 20% to 100% of full scale

• Contact Heavy Maintenance Supply 205-384-5284 for more information