Why Shear Wrenches?

Tension control (TC) bolts are the most popular structural fasteners in North America. Sometimes called twist-off or Lejeune bolts, they are designed with a spline that shears off when it reaches the proper level of tension. Using our TC Wrenches, you can install TC bolts simply and economically. Your overall productivity goes up because it’s not necessary to calibrate the tool, you save money by streamlining this time-consuming process without losing any of the accuracy you need for structural integrity.

TC Wrenches are:

  • Used for one sided installation
  • Quiet, non-impacting operation
  • No air compressor necessary
  • No tool calibration necessary
  • Low maintenance
  • Lightweight, with electric or manual operation

Trusted By:


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.”


Your questions, answered.

Do you bill by the month for rentals?

We typically bill by the week but we’re working on a monthly option.

Do you sell tools outside the country?

Yes, we provide tools all over the world.

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.

Are there any used tools for sale?

We do have some used tools for sale but the selection of used is limited.

What do I do with my rental after I am done with it?

Verify everything is back in the case and send it back to GWY at 217 Forest Rd., Greenfield, NH 03047 in the preferred method of your choice.

My tips are not ejecting from the inner socket. Why?

This can happen for several reasons. It could be that your inner socket is worn and is not functioning properly. It could be a worn ejector spring or ejector pin. If you are installing galvanized bolts you may need an oversized inner socket to fix this problem. It could be that the latch and ejector system inside the tool is worn.

Is there a warranty on your tools?

1-year manufacturers defect warranty on new tools.

What is the turnaround time for repairing/recalibrating my tools?

When we receive the tools, we typically have a one to two day turnaround time before shipping back to the customer.

Buy, Rent, or Repair with GWY