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TONE GNR-51E Electric Torque Wrench

The GNR-51E square-drive nut runner features clockwise and counterclockwise directions, a torque setting dial, and LED indicator lights.

Fully Tensioned Structural Bolts: 

A325 – 5/8”, 3/4”

A325M – M16, M20

A490 – 5/8”

A490M – M16

Adjustable Torque Range: 

150-370 ft-lb. / 200-500 N-m


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Voltage 110-120 V 220-230 V
Maximum Current 14.5 A 7.5 A
Maximum Power Consumption 1,650 W 1,650 W
Adjustable Torque Range 150~370 ft-lb. 200~500 N-m
No-load Speed 29 rpm 29 rpm
Square Drive Size 3/4″ drive 3/4″ drive
Weight 11.0 lb. 5.0 kg
Repeated Accuracy ±5% ±5%

Available Accessories

  • X-Holder Extension 100mm (3-7/8″)
  • Digital Torque Meter DTM5
  • 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.”

  • GWY has been a great company to work with. My company requires receipts for all credit card purchases and GWY has made this very easy. With rental equipment this usually isn't the easiest to deal with but they have made this process very smooth. I get a weekly receipt emailed to me without having to ask for it. They also have great customer service and are very helpful and friendly. Would definitely recommend.”


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.

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.