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TSO Products LLC.

TSO Products Guide Rail Squares

Guide Rail Squares from TSO Products
There's no quicker way to square your FESTOOL®, MAKITA® & TRITON® track saws

The GRS-16 family is the easiest, fastest and most accurate way to square your guide rail.

The Original Guide Rail Square, Refined

Thanks to feedback from the TSO user community, the GRS-16 now embodies a number of requested features and refinements:

  • Lighter than its predecessor despite being CNC machined from 25% thicker aluminum, with a mating vertical edge that now perfectly matches the height of your guide rail extrusion for maximum support and engagement
  • Latch hook now features a resilient coating to grasp and protect the edge of your guide rail
  • Reshaped T feature lead-in makes it even easier to install onto your guide rail
  • Additional accessory mounting provisions included—see our new Angle Accessory and stay tuned for some exciting new products building off the GRS-16 platform
  • Adjustments to key tolerances to better accommodate production variances observed in guide rail manufacturing
  • Available Dual FoamPac Systainer Insert fits both the GRS-16 and GRS-16 PE in a single SYS1 T-LOC Systainer
  • Fasteners used on all TSO brand tools are now metric for worldwide availability
  • New, fully recyclable all-corrugated white packaging

Simple, Automatic Accuracy

Before the GRS-16 family, accessories for squaring up your track saw guide rail relied on the loose-tolerance T-slot found on just about every guide rail. To overcome this inherent inaccuracy, you had to rely on a separate reference square, plus a combination of loose parts like T-bars, hex bolts, knobs or wingnuts. No longer! The patent-pending GRS-16 is completely self-contained and self-aligning, thanks to an innovative, high strength integral draw latch mechanism. Simply slide the GRS-16 or GRS-16 PE onto your guide rail, lock the draw latch, and you're done. Five seconds to square.

Engineered for maximum accuracy and ease of use, the GRS-16 and GRS-16 PE are precision CNC machined from single pieces of 6061-T6 aluminum and then anodized for a non-marring, high durability finish. Once secured to your guide rail, squareness can be quickly verified by observing the zero-clearance attachment between the square and guide rail. Despite its high clamping strength, your guide rail is completely supported by the straight-edge of the GRS-16, eliminating any potential for track deformation over time. An ergonomic handle makes it easy to lift and reposition the square along your length of track, and machined chamfers improve comfort and handling. Both the GRS-16 and GRS-16 PE are made in the United States, and come with our unconditional lifetime warranty. Engineered for maximum accuracy and ease of use, the GRS-16 and GRS-16 PE are precision CNC machined from a single piece of 6061-T6 aluminum and then anodized for a non-marring, high durability finish. The high-strength draw latch is built from stainless steel—to resist rust and pitting over time—and features a resilient, grippy, non-marring coating on the latch hook. Despite its high clamping strength, a comfort coating on the latch handle makes it easy to generate the leverage necessary to engage, release or reposition the square along your length of track. Both the GRS-16 and GRS-16 PE are made in the United States, and come with our lifetime warranty.

So Which Tool is Right for You?

If you want the absolute smallest and lightest form factor and anticipate using the square for conventional cuts referencing the front edge of your workpiece, choose the GRS-16. If you need the ability to reference off the front and back edge of your workpiece, select the GRS-16 PE. Can't decide? Check out the Combination Set for the best of both worlds:

  • Allows you to square both ends of longer rails for greatest accuracy
  • Keep one in the truck and one in the shop
  • Special savings when purchased together as a Combination Set

Guide Rail Square Comparison Table

  GRS-16
Guide Rail Square
GRS-16 PE
Guide Rail Square
GRS-16 & GRS-16 PE
Combination Set
  GRS-16 GRS-16 PE GRS-16 & GRS-16 PE Combination Set
Best for… Squaring your guide rail by referencing off the front edge of your workpiece Squaring your guide rail by referencing off either the front or back edge of your workpiece Squaring your guide rail by referencing both the front and back edge of your workpiece at the same time; ideal for longer guide rails
Price $159.95 $179.95 $319.95
Optional Accessories FoamPack Storage Insert for SYS-1 T-LOC Systainer
Angle Accessory
FoamPack Storage Insert for SYS-1 T-LOC Systainer
Angle Accessory
FoamPack Storage Insert for SYS-1 T-LOC Systainer
Angle Accessory

Got a suggestion to make this page even better? Your feedback and suggestions are always welcome!

The TSO Products GRS-16 is Patent Pending.
Product specs and design are subject to change without notice as we continue to improve our products.
FESTOOL is a Trademark of FESTOOL Tool Technic Tanos.
GRS-16™ TSO Products, LLC.
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