Skip to content

TONE GS-91EZ Shear Wrench

The GS-91EZ is a powerful mid-range shear wrench compatible with 5/8”, 3/4″, 7/8” and 1” diameter bolts. This wrench shears off the spline of a TC bolt when it reaches the correct tension. The ejector lever is then pulled to eject the spline for easy removal.

Fully Tensioned Structural Bolt: Maximum Torque:
A325- 5/8″, 3/4″, 7/8″, 1″

A325M- M16, M20, M22

A490- 5/8″, 3/4″, 7/8″, 1″

A490M- M16, M20, M22

810 ft-lb. (1,100 N-m)
Talk to a Specialist
Want to talk to a specialist now?
(888) 838 6500
Business Hours: 8am - 5pm Est


Voltage 110-120 V 220-230 V
Maximum Current 17 A 8.5 A
Rated Power  1,750 W 1,750 W
Frequency 50-60 Hz 50-60 Hz
Maximum Torque 810 ft-lb. 1,100 N-m
No-load Speed 17 rpm 17 rpm
Tool Weight 16.8 lb. 7.6 kg

Available Accessories


Helpful resources:

Trusted by:


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.”


Are my sockets for the S90EZ/GS91EZ interchangeable with the S-110EZ/GS-111EZ tools? Every tool?

The S-60EZA and S-61EZ are interchangeable. The S-90EZ and GS-91EZ are interchangeable and the S110EZ and GS-111EZ are interchangeable. All other sockets for the shear wrenches are specific to the models.

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.

Does my shear wrench need to be calibrated?

No, shear wrenches do not have any settings for calibration. TC bolts are calibrated and come with mill certificates to prove calibration.