Proto offers a broad range of professional torque products. A product
line that ranges from easy-to-use Micrometer, or “click” style Torque
Wrenches, Electronic Torque Wrenches, Dial Torque Wrenches and
Torque Screwdrivers to full-featured electronic Torque Multipliers and
Torque Testers. Each torque wrench is manufactured to precise
specifications for maximum performance for your torque application.
MICROMETER TORQUE WRENCHES
Proto offers 1/4" - 1" drive in both ratchet and fixed head styles,
covering torque ranges from 10 in. lb. to 2,000 ft. lb., 14 cmkg through
90 mkg, and 10-800 Newton meters. Proto micrometer torque wrenches
are calibrated to ±3% of torque reading clockwise and ±6% of torque
reading counterclockwise at 20% to 100% of full scale.
Each Proto torque wrench includes a Calibration Certificate that
verifies the actual readings and includes a unique torque wrench serial
number. Proto torque wrenches are certified to meet, or exceed, the
standards specified in ANSI B107.14-1994.
Specialty ordered certified micrometer wrenches to ±2% one direction
are available upon request. Pre-set torque wrenches are also available
on special request.
TORQUE MULTIPLIERS
Torque multipliers help reduce the effort needed to generate high
torque. Proto offers multipliers with maximum outputs ranging from
750 ft. lbs. to 12,000 ft. lbs.
DIAL TORQUE WRENCHES
Proto wrenches are accurate to ±3% actual torque reading in both
directions over a range 20% to 100% of full scale. Certified Proto dial
torque wrenches may be special ordered and are traceable to the
National Institute of Standards and Technology and exceed
Government Specification GGG-W00686c.
Torque beam design provides exceptional accuracy and will withstand
up to 20% accident overload without losing calibration.
Models up to and including 600 ft. lb. feature memory needle which
pinpoints peak torque attained.
Dual scale allows quick, easy torque readings in either English
or Metric values.
Large, easy-to-read dials are protected by metal guards.
