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Guide Rail Squares
Guide Rail Squares from TSO Products
Fastest way to square cuts with your Festool, Milwaukee, DeWalt, Makita, Kreg & Triton Track Saws
The Original, Patented Guide Rail Square
Since its initial release over seven years ago, the GRS-16 Guide Rail Square has become an essential companion to the track saw for two big reasons: accuracy and efficiency. With the GRS-16, you can break down sheet goods much faster while ensuring perfect 90° cuts every time. So what makes the GRS-16 the best tool of its kind?
- Born Square: All GRS-16 squares feature a single-piece design that self-squares to 90° with no adjustments needed (and therefore, no points of failure in the future)
- Rock-Solid Attachment: Super strength, custom draw latch features a resilient coating to grasp the edge of your guide rail and prevent marring
- The Perfect Form Factor: Lightweight design that balances perfectly once attached to your guide rail, and compact enough to fit into a Systainer (with optional Foam Insert available)
- Expandable: Accessory mounting holes enable connection to the TSO Parallel Guide System and Angle Accessory
- Wide Compatibility: We now offer a GRS-16 model compatible with most popular track saw systems, including Festool, Milwaukee, DeWalt, Makita, Kreg and Triton
Simple, Automatic Accuracy
Before the GRS-16, methods for squaring a track saw relied on the loose-tolerance T-slot found in every guide rail. To overcome this inherent inaccuracy, woodworkers relied on a separate reference square, plus a combination of loose parts like T-bars, hex bolts, and knobs. These shop-made solutions would often quickly fall out of square, requiring constant vigilance and recalibration to maintain accuracy.
The patented GRS-16 family solves this problem with a simple one-piece design that self-squares as it attaches to the guide rail. Once connected, the GRS-16 becomes a rigid extension of your guide rail, providing a precise 90° reference edge (or two, in the case of the GRS-16 PE) that won’t fall out of square over time.
TSO Guide Rail Square Comparison Table
| GRS-16 Guide Rail Square |
GRS-16 PE Guide Rail Square |
GRS-16 PE D Guide Rail Square |
GRS-16 PE K Guide Rail Square |
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| Fits guide rails from… | Festool, Makita, Powertec, Triton | Festool, Makita, Milwaukee, Powertec, Triton | DeWalt | Kreg |
| 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 off either the front or back edge of your workpiece | Squaring your guide rail by referencing off either the front or back edge of your workpiece |
| MSRP | $179.95 | $189.95 | $169.95 | $189.95 |
| Optional Accessories | TPG Parallel Guide System TSO Limited Edition Systainer with GRS-16 Foam Inserts FoamPack Storage Insert for Systainer3 M 112 and SYS-1 T-LOC Systainers Angle Accessory |
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