Proto® Electronic Interchangeable Head Torque Wrenches

• Full interface with Proto® Interchangeable Head Attachments.
• Accuracy of +/- 2% of indicated value in both clockwise and counter clockwise directions.
• Broad accuracy range extends from 10% to 100% of Full Scale to help reduce the number of torque wrenches required.
• Ninety-nine “on-board” memory storage locations help improve efficiency when taking multiple torque readings.
• Three units of measure are available (Ft-lb, In-lb, and Nm).
• Three operating modes: Track Mode, Peak Hold and Auto Clear.
• Fast sampling rate helps maintain high accuracy during torque applications.
• Torque wrench head rotates to allow for easy viewing of LCD display.
• Easy to read LCD Display with large digits.
• 3-way Red/Green/Yellow lights.
• Yellow light appears at the low end of the zone.
• Green light appears and buzzer sounds when the target is reached.
• Red light appears with intermittent buzzer when it is over torqued.
• Audible buzzer helps identify when desired torque target zones are approaching and met.
• Target torque zone is adjustable from 1% to 10% of targeted torque value.
• Meets or exceeds ASME B107.28

Proto® Ratchet Torque Wrench Heads – H4 Tang

• Fixed ratcheting head with a robust 24 tooth design with 15° arc swing
• Alloy steel drive gear for strength and durability
• Low profile for easy access
• Reversing lever design for quick, one handed operation

Proto® Open End Torque Wrench Heads – H4 Tang

• Open end is angled to 15º to help keep shank clear of obstructions helping to improve access

Proto® Box End Torque Wrench Heads – H4 Tang

• The Proto® TorquePlus™ Design, a high performance drive configuration which allows for quick and easy wrench engagement with the fastener flats, not the corners
• 12 point box end allows for fine indexing, helping to improve speed and access
• Fits 4, 6 and 12 point fasteners
• Indexed to 7.5º to help keep shank clear of obstructions by allowing the user to flip the wrench over to continue turning the fastener
• Countersunk on both sides to allow for easy application to the fastener

Proto® Open End Torque Wrench Heads – H5 Tang

• Open end is angled to 15º to help keep shank clear of obstructions helping to improve access

Proto® Box End Torque Wrench Heads – H5 Tang

• The Proto® TorquePlus™ Design, a high performance drive configuration which allows for quick and easy wrench engagement with the fastener flats, not the corners
• 12 point box end allows for fine indexing, helping to improve speed and access
• Fits 4, 6 and 12 point fasteners
• Indexed to 7.5º to help keep shank clear of obstructions by allowing the user to flip the wrench over to continue turning the fastener
• Countersunk on both sides to allow for easy application to the fastener

Proto® Open End Torque Wrench Heads – H7 Tang

• Open end is angled to 15º to help keep shank clear of obstructions helping to improve access

Proto® Box End Torque Wrench Heads – H7 Tang

• The Proto® TorquePlus™ Design, a high performance drive configuration which allows for quick and easy wrench engagement with the fastener flats, not the corners
• 12 point box end allows for fine indexing, helping to improve speed and access
• Fits 4, 6 and 12 point fasteners
• Indexed to 7.5º to help keep shank clear of obstructions by allowing the user to flip the wrench over to continue turning the fastener
• Countersunk on both sides to allow for easy application to the fastener

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