TSO Products


Guide Rail Squares from TSO Products

There's no quicker way to square your FESTOOL®, MAKITA® & TRITON® track saws Your browser does not support the video tag.

Until now, 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. Not any longer! The patent-pending GRS-16 and GRS-16 PE are 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.

So Which Tool is Right for You?

Reasons to choose the original GRS-16:

  • Smallest and lightest form factor for easier handling and convenience, in the shop or on the job site
  • Stores nicely in a FESTOOL SYSTAINER T-LOC SYS 1 TL (see our optional FoamPac Storage Insert)
  • Ideal for conventional cuts made referencing off the front edge of your workpiece

Reasons to choose the GRS-16 PE:

  • Permits referencing off the front and back edge of your workpiece
  • Retains all of the functionality of the original GRS-16 guide rail square

Reasons for choosing both the GRS-16 and GRS-16 PE (the version you see on this page):

  • 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


TSO Products Precision Triangles

Precision triangles designed to unlock the potential of your 20mm patterned worktop

Introducing the TSO Products MTR-18 and PTR-18 precision triangles Much more than just triangles, the TSO Products PTR-18 and MTR-18 are first-of-their-kind tools combining the accuracy of a CNC machined precision triangle with included accessories to enable countless clamping, angle measurement and jig scenarios. Designed to take advantage of today's modern 20mm hole patterned worktops, these triangles are machined on high-precision CNC machining centers and made from thick precison aluminum tooling plate guaranteed to be square to within .001" over their 18" length as verified using automated CMM (Coordinate Measuring Machines).


TSO Products Workholding Accessories

An easy, smart and accurate way to get more out of your 20mm worktop

DoubleGroove Dogs are just part of a complete line of innovative workholding solutions from TSO Products. Introducing a new line from TSO Products: quality workholding accessories designed to take your FestoolŪ MFT/3 or similar 20mm perforated worktop to the next level! At the heart of this new offering, we've reinvented the 20mm bench dog with some TSO firsts that improve ease-of-use and comfort. Use our DoubleGrooveTM Dogs to position your workpiece for square or angular cuts, use them to attach our PTR-18 or MTR-18 Precision Triangles to your worktop, or use them in conjunction with Dog Rail Clips to secure your guide rail to your worktop. A picture speaks a thousand words, which is why we recommend checking out the incredible video below!


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