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TONE GNR-31E Electric Torque Wrench

The GNR-31E is our smallest square-drive nut runner featuring clockwise and counterclockwise directions, a torque setting dial, and LED indicator lights.

Fully Tensioned Structural Bolts: 

A325 – 1/2″, 5/8”

A325M – M14, M16

A490 – 1/2”

A490M – M14

Adjustable Torque Range: 

110-220 ft-lb. / 150-300 N-m


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Business Hours: 8am - 5pm Est


Voltage 110-120 V 220-230 V
Maximum Current 10.5 A 5.5 A
Maximum Power Consumption 1,100 W 1,100 W
Adjustable Torque Range 110~220 ft-lb. 150~300 N-m
No-Load Speed 35 rpm 35 rpm
Square Drive Size 3/4″ drive 3/4″ drive
Weight 9.9 lb. 4.5 kg
Repeated Accuracy ±5% ±5%

Available Accessories

  • X-Holder Extension 100mm (3-7/8″)
  • Digital Torque Meter DTM 5
  • 3/4” (19mm) Square-Drive Sockets
  • Bar Sockets



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Kind words from our customers:

  • I have enjoyed working with GWY. Their people know their product well. Their prompt response and delivery of the product is as good as any service Ogeechee Steel has ever had the pleasure of doing business with.”

  • From choosing the right equipment for each job’s unique requirements to problem solving in the field, GWY is always willing to go out of the way to find a solution. Mix that customer service in with their technical expertise and easy-to-use tools, they really help make bolt up easy.”


Does the tool come with anything?

All of our tools come with a case.  Our Turn-of-Nut & Shear Wrenches come with the one size socket and a metal case.  The cordless tools come with one or two batteries, a charger, and a case.

What is the lead time on getting this tool to me?

If we have it in stock, we can send it next day air within the US to get to you tomorrow.

Is there a warranty on your tools?

1-year manufacturers defect warranty on new tools.