Original, Patented Guide Rail Square for FESTOOL®, MAKITA®, Milwaukee®, POWERTEC® & TRITON®
Introducing the newest version of the best-selling guide rail square on the market: the GRS-16. Incorporating a number of user-driven enhancements, the TSO GRS-16 guide rail square is still the fastest, easiest and most accurate way to square cuts with your FESTOOL, MAKITA, MILWAUKEE, POWERTEC and TRITON track saw guide rails.
Featuring New Enhancements
Thanks to feedback from the TSO user community, the GRS-16 guide rail square now includes:
- Our lightest design ever despite being CNC machined from 25% thicker aluminum, with a mating vertical edge providing maximum guide rail support
- Latch hook resilient coating grasps and protects the edge of your guide rail
- Easier to install onto your guide rail with a reshaped T-feature lead-in
- Accessory mounting holes tapped for M6 threads—enables connection to the TSO Parallel Guide System and Angle Accessory
- Available Dual Systainer Foam Insert fits both the GRS-16 and GRS-16 PE in a single Systainer
- New, fully recyclable all-corrugated packaging
See How It Works
Simple, Automatic Accuracy
Introducing the fastest way to dead square cuts with your track saw: the GRS-16 Guide Rail Square. With its custom-made and powerful draw latch, the GRS-16 instantly self-squares while it clamps down to your track. And with a one-piece design made from a solid chunk of CNC-milled aluminum, you won’t have to worry about losing that screw, clamp or other necessary accessory. Simply slide the GRS-16 onto your guide rail, clamp it down, and get to work.













