GRS-16 & GRS-16 PE "Ultimate" Combo Set
Patented Precision Guide Rail Squares + Limited Edition TSO Blue Systainer + Dual FoamPac Inserts
Enjoy special savings when you purchase both the GRS-16 and GRS-16 PE as a combination set, now available in this "ultimate set" which also includes our custom branded TSO Blue Systainer and Dual FoamPac Inserts to make it easier than ever to store and transport your squares.
The GRS-16 and GRS-16 PE are designed to make it much faster to achieve dead square cuts with your FESTOOL, MAKITA or TRITON track saw. Keep one in the truck and one in the shop, or use both guide rail squares at the same time to square either ends of longer guide rails.
The Original Guide Rail Squares, Refined
Thanks to feedback from the TSO user community, these latest squares embody 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
- Both squares now fit in a single SYS1 T-LOC Systainer (included) and are protected with a two-layer FoamPac Insert (also included)
- 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
- Accessory mounting holes on both squares are tapped for M6 threads—enabling connection to the TSO Parallel Guide System and Angle Accessory
- Adjustments to key tolerances to better accommodate production variances observed in guide rail manufacturing
- 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 and GRS-16 PE are completely self-contained and self-aligning, thanks to an innovative, high strength integral draw latch mechanism. Simply slide the square onto your guide rail, lock the draw latch, and you're done. Five seconds to square.
Accurate cuts with your track saw often require using a screw or quick clamp. For this reason, we've designed notches in both reference edges of the GRS-16 PE to accommodate popular clamps like the Festool Screw Clamp or Quick Clamp.
Built for a Lifetime of Service (or Longer)
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.
A System Approach
The GRS-16 and GRS-16 PE are much more than guide rail squares; in fact, they form the foundation of a broader system of TSO Products designed for interoperability. Case in point: the TSO Parallel Guide System utilizes the M6 accessory mounting holes on the GRS-16 and GRS-16 PE for attachment. Once connected, you can repeatedly square and rip multiple workpieces in a single operation.
The Best of Both Worlds
When you need 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. When you need the ability to reference off the front and back edge of your workpiece, select the GRS-16 PE. Or, choose 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
- Dimensions (Both): 15.2 x 6.0 x 1.4 inches (385 x 152 x 36 mm) - see drawings for GRS-16 and GRS-16 PE
- Weight (GRS-16): 1.7 lbs (772 g)
- Weight (GRS-16 PE): 1.9 lbs (862 g)
- Material (Both): 6061-T6 aluminum, anodized, 5/8 in (15 mm) thick
- Compatible Guide Rails (Both): FESTOOL, MAKITA and TRITON (not compatible with FESTOOL HK 55 Carpentry Saws including the FSK 250, FSK 420 and FSK 670; not compatible with BOSCH or DEWALT tracks)
- Clamping Mechanism (Both): Over center draw latch (304 stainless steel) with compensating spring; secured with M4x0.7-10 stainless steel socket head screws
- Accessory Mounting Holes: Tapped for M6 threads for compatibility with TSO Parallel Guide System and Angle Accessory
Introductory video of the GRS-16.
Introductory video of the GRS-16 PE.
Quick video walkthrough of the original GRS-16 PE.
Special thanks to Eric at The Poplar Shop for his unexpected video review of the original GRS-16!
Guide Rail Square Comparison Table
Guide Rail Square
Guide Rail Square
|GRS-16 & GRS-16 PE
|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|
|Optional Accessories||TSO Limited Edition Systainer with GRS-16 Foam Inserts
FoamPack Storage Insert for SYS-1 T-LOC Systainer
Got a suggestion to make this page even better? Your feedback and suggestions are always welcome!
At TSO Products, we are continually striving to improve our products based on customer input. While we make every attempt to keep our product pages up to date, know that the product you receive could reflect recent improvements and therefore differ slightly from the product depicted. We reserve the right to change specification of products without notice. Standard equipment and specifications may differ from country to country.
Other DetailsWe stand by the GRS-16 with a lifetime warranty!
Videos Hide Videos Show Videos
TSO Products GRS-16 Guide Rail Square. Quick review.
TSO Products sent me the GRS-16 guide rail square and asked me...
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GRS-16 Track Saw Guide Rail Square Review
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One month review of my TSO Products GRS-16
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Testing the TSO GRS-16 PE Square with the FESTOOL FS1400 Guide Rail
The friendly people at TSO send me their TSO GRS-16 PE. I cut...
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Track Saw Guide Rail Square - Presenting the GRS-16
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Track Saw Guide Rail Square - Presenting the GRS-16 PE
In just seconds, transform your Festool, Makita or Triton bran...
5 Reviews Hide Reviews Show Reviews
Beautifully machined, they both snap onto the track “just right”, not too tight or loose. I already have the MTR precision triangle, so I’ll be able to use its’ accessories if I ever have to line up against a curved surface.
Nice Construction and quick and easy to set up.
I purchased the set. I'm not a woodworker, and this is not the world I normally exist in. I need it to make precision cuts on "sheet good." This worked perfectly paired with the Festool Track Saw T55. I'm super happy with these tools. I highly recommend! And the stystainer case works perfectly and stores seamlessly with my tracksaw systainer case.
For ripping and crosscutting the factory edges of cabinet grade plywood and establishing your own reference edges, this is an excellent tool/guide for use in combination with (in my case) Festool track saw guides. These are very high quality right angle guides that positively clamp onto the track saw guide, with zero slop and no slippage. I highly recommend this combo set with the systainer and foam inserts. Both GRS-16/PE on one track are not necessary to cut a right angle reference edge, but it is convenient to have this combo set for multiple tracks. I highly recommend this product in combination with the TPG-50 Complete.
It just works. I got it a week or so ago and I've been using it daily since. It has opened up a whole new world of functionality for my tracksaw.