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TONE TNC-24EZA Minimal Clearance Turn-of-Nut Wrench

The TNC-24EZA minimal clearance turn-of-nut wrench is great for working in tight spaces. This wrench features a control box with LED indicator lights and angle setting dial.

Fully Tensioned Structural Bolts: 

A325 – 3/4”, 7/8″

A325M – M20, M22

A490 – 3/4″, 7/8″

A490M – M20, M22

Maximum Torque:

920 ft–lb. (1,250 N-m)


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Voltage 110-120 V
Maximum Current 14.5 A
Maximum Power 1,650 W
Frequency 50-60 Hz
Maximum Torque 920 ft–lb. (1,250 N-m)
No-load Speed 11 rpm
Total Weight                      (tool & control box) 16.5 lb. (7.5 kg)
Repeated Accuracy ±10°

Available Accessories

Inch Sockets Metric Sockets
Nut Dimension Across Flats Heavy-Hex Bolt Diameter Nut Dimension Across Flats Heavy-Hex Bolt Diameter Finished Hex Bolt Diameter
1 – 1/4″ 3/4″ 32 mm M20 M22
1 – 7/16″ 7/8″ 36 mm M22 M24
1 – 5/8″* 1″* 41 mm* M24* M27*

*Contact us for instruction on proper use with 1″ diameter bolts.




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Kind words from our customers:

  • It was a great pleasure working with GWY. They go above and beyond to help with what we needed. Don was very quick on getting what we needed out to us to complete the job. Very proud to be a GWY customer.”

  • 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.”


Because the TN-tool is rotation based, can it do smaller sizes than what it is recommended for?

No, because for the tool to start counting the degrees of rotation, a certain torque must be met.

Does my TN wrench need to be calibrated?

No, turn of nut (TN) wrenches do not require calibration. TN tools are rotation tools, and they measure rotation mechanically. These tools either work or they do not. You can match mark to show they are functioning properly.

Are the same size sockets interchangeable between different tools?

Typically, the answer is no but there are exceptions.  The only interchangeable sockets for current model shear wrenches are between the GV-301ZA and the GVC-301EZ. The Older models like the S-60EZA share sockets with their newer models like the S-61EZ. The same is true for the S-90EZ and GS-91EZ as well as the S-110EZ and the GS-111EZ. There are a few TN tools that share sockets with each other such as the TN-20EZ and the TN-22EZ as well as the TN-30EZ and the TN-33EZ. The GNR series can share sockets with some of the TN tools. The GNR-31E, 51E, & 81E can use the TN-20EZ/22EZ bar sockets instead of impact sockets. The GNR-121E can use the bar sockets of the TN-24EZA and the GNR-211E can use the bar sockets of the TN-30EZ/33EZ. The GNR’s can also share impact sockets that have their correct drive size.