We invented the preset click wrench. In 1954 we patented interchangeable heads for torque wrenches with this tool. In 1999 we embedded a radio in this tool and heralded in the wireless industry. These tools are nearly indestructible. If you use wireless preset click wrenches in your assemblies, there is only one tool to consider. This one: the SLTC FM 2.4 GHz click wrench. You are on the right page which means you are on the right track. 

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When the wrench clicks, the designated amount of torque has been applied. Stop pulling. Continuing to pull after the wrench clicks can increase the applied torque to a value that exceeds the engineering specification. 

This preset click torque wrench measures and applies torque in the clockwise direction. Using this wrench in the counter-clockwise direction will apply torque, but it will not measure torque because it does not click in the counter-clockwise direction. 

Specification and Ordering Information

SLTC FM 2.4 GHz Preset Click Wrench With A3 Radio English Units of Measure        

Please note: Preset torque wrenches with a fixed ratchet are in the chart below this one. 

Need the instructions? Scroll down to the bottom of the page and download it from there. 

Please note: the I included in the model designation indicates Inch-Pound capacity. If the I is not present, then capacity would be noted in Foot Pounds. 

Part Number Model Designation
Capacity Newton Metre Head
810411 SLTC FM 2.4 GHz A3 50 I                     50 in-lb
6 Nm Dovetail
810412 SLTC FM 2.4 GHz A3 150 I   150 in-lb 17 Nm Dovetail
810413 SLTC FM 2.4 GHz  A3 300 I                                       300 in-lb 34 Nm Dovetail
810410 SLTC FM 2.4 A3 300 I OHT                                  300 in-lb 34 Nm Dovetail
810414 SLTC FM 2.4 A3 750 I 750 in-lb 85 Nm Dovetail
810415 SLTC FM 2.4 A3  1800 I 1800 in-lb 204 Nm Dovetail
810421 SLTC FM 2.4 A3 1800 I ERGO 1800 in-lb 204 Nm Dovetail
810420 SLTC FM 2.4 A3 3000 I 3000 In lb 339 Nm Dovetail
810417 SLTC FM 2.4 A3 3600 I 3600 in-lb 408 Nm Dovetail
810418 SLTC FM 2.4 A3 4800 I 4800 in-lb 542 Nm Dovetail


Need an SLTC FM Wrench With a Ratchet?  Here You Are!                                

Part Number Model Designation Capacity Metric Capacity Head Size/Type 
810423 SLTCR FM 2.4 A3 750 I 750 in-lb 84.73 Nm 3/8" Ratcheting SD
810424 SLTCR FM 2.4 A3 1800 I 1800 in-lb 203.73 Nm 1/2" Ratcheting SD
810425 SLTCR FM 2.4 A3 1800 I ERGO  1800 in-lb 203.73 Nm 1/2" Ratcheting SD
810416 SLTCR FM 2.4 A3 3000 I 3000 in-lb 339 Nm 1/2" Ratcheting SD
810419 SLTCR FM 2.4 A3 7200 I 7200 in-lb 813 Nm 3/4 " Ratcheting SD

How do you know if you have a 6-volt battery/radio wrench or the new A3 battery/radio wrench? A simple way is to look at the part number.

 810411 is the SLTC FM A3 50i model.

The 810311 is the SLTC FM 6 volt model. 


SLTC 2.4 GHz A3 Preset Clicker-Type Torque Wrenches

Application Information

We are announcing the new SLTC 2.4 GHz A3 Preset Clicker-Type Torque Wrench. We kept the flattened case for superior accuracy, reliability, and durability. Customers tell us that this wrench holds calibration better than any other brand. 


Full compatibility with Global 8, Global 8-Ethernet, Global 400mp, Global 400, PTV-FM 2.4 GHz, TCV-FM 2.4 GHz, TCV e2, and TCV-Ethernet.

  • The accuracy of +/- 4% or better of preset value from 20% to 100% of capacity meets or exceeds requirements of ASME B107.300-2010 and ISO 6789.
  • When we set the torque value at t
  • Excellent audible/tactile impulse when preset torque is achieved.
  • Error Proofing By Guidance: Monitors time in the “clicked” position to proved “OK/BAD” quality attribute data with every use of the tool.
    • Too little time in the clicked position means the tool was likely “jerked”, resulting in either over-or under-torque.
    • Correct time in the clicked position means the tool was used properly to transmit the preset torque correctly to the fastener.
    • Too much time in the clicked position means the tool was likely pulled past the click and excess torque was applied to the fastener.
    • Working with these intelligent tools helps refine eye/hand motor skills and improve performance. This is Error Proofing By Behavior Modification in action.  
    • The new A3 has a new battery that lasts longer and is easier to change. We also added a new raised LED Fresnel to improve visibility when working in less than optimal positions. The AAA batteries are more readily available than are the 6-volt batteries. The AAA batteries also cost less. Some companies are seeing the savings in battery costs to be substantial. The switch to the AAA battery board is a great idea.

Have existing 6-volt SLTC FM 2.4 GHz wrenches and want to upgrade? No problem. Retro-fit kits are fast and easy to install and are typically completed in less than five (5) minutes. (Order P/N 10615 for wrenches up to 1800i and P/N 10616 for wrenches with a capacity of 3000i and larger)  

SLTC wireless switch wrench


Learn more about the retrofit kit that is right for your wrenches. 


A quick note about batteries and our SLTC FM wrenches: the radio in our Exacta Series digital wrenches and our digital torque testers require the use of a NiMH battery. However, the SLTC FM click wrench can use alkaline batteries or NiMH batteries. For your convenience, we ship our SLTC FM with an alkaline battery (as seen in the photo above) so you can set the wrench, add the battery, and go to work. 





There is more about error proofing in our tool pages. If you need more, your Sturtevant Richmont Sales Professional is a great resource to help. 


 Sturtevant Richmont tools are proudly made in Carol Stream by highly capable hands.