Product Description
GRS-16 PE K: Guide Rail Square for Kreg®
The original, patented precision guide rail square now compatible with Kreg's Adaptive Cutting System
The proven design of the GRS-16 Family has now been adapted to fit Kreg's track saw cutting system! Like the original GRS-16 and GRS-16 PE squares, the GRS-16 PE K makes it faster to achieve dead square cuts with your Kreg Adaptive Cutting System Plunge Saw. With two reference parallel edges, the GRS-16 PE K permits squaring against the front or back of your workpiece.

Part of TSO's system approach to woodworking, the GRS-16 PE K is compatible with the TPG Parallel Guide System.
The GRS-16 PE K is much more than a guide rail square; in fact, it's the foundation of a broader system of TSO Products designed for interoperability. Case in point: the TSO Parallel Guide System connects to the GRS-16 PE K via its included M6 accessory mounting holes. Once attached, you can repeatedly square and parallel rip with your track saw in a single operation.
GRS-16 PE K Highlights
Thanks to feedback from the TSO user community, the GRS-16 PE K incorporates all of our latest design innovations:
- Ultra-light and balanced design machined from 6061-T6 aluminum, with a mating vertical edge that perfectly matches the height of your Kreg guide rail extrusion for maximum support and engagement
- Two squares can now fit in a single Systainer—see our Dual FoamPac Systainer Insert and limited edition TSO Blue Systainer3 M 112
- Custom high-strength stainless steel latch with resilient coating to grasp and protect the edge of your guide rail
- Filleted T-feature lead-in makes it even easier to install onto your guide rail—"five seconds to square!"
- Accessory mounting holes tapped for M6 threads—enables connection to the TSO Parallel Guide System and Angle Accessory
- Sustainable, fully recyclable all-corrugated white packaging
See How It Works
The design of the GRS-16 PE K is based on our popular GRS-16 PE square, and shares the same features and benefits. See the GRS-16 PE K put to use in the video below.
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 patented GRS-16 PE K is completely self-contained and self-aligning, thanks to an innovative, high strength integral draw latch mechanism. Simply slide the GRS-16 PE K 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 clamp or quick clamp, sliding into a guide rail T-track. For this reason, we've designed notches in both reference edges of the GRS-16 PE K to accommodate popular screw clamps and rapid clamps.
Built for a Lifetime of Service (or Longer)
The GRS-16 PE K is precision CNC machined from a single piece of 5/8" (15 mm) thick 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. 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. The GRS-16 PE K is made in the United States, and comes with our five-year warranty.
Technical Details
- Dimensions: 15.2 x 6.0 x 1.4 inches (386 x 152 x 36 mm)
- Weight: 1.9 lbs (862 g)
- Material: 6061-T6 aluminum, anodized, 5/8 in (15 mm) thick
- Compatible Guide Rails: Kreg Adaptive Cutting System guide rails (ACS430); not compatible with the Kreg Accu-Cut™ system
- Clamping Mechanism: 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
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Other Details
TSO brand products are guaranteed for five years from date of sale against defects in materials or workmanship. Normal wear and tear and accidental damage are not covered. For any product determined to have a defect covered by this warranty, TSO Products will repair or, at its option, replace with current comparable product. Warranty requests require an RMA (return authorization number) prior to any return. Request an RMA number by contacting TSO Customer Service (info@tsoproducts.com).Product Videos
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Product Reviews
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Superior quality for the Kreg system
I've been waiting for the GRS-16 to come to Kreg for quite awhile - super happy with the results I've been able to achieve from it!
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Perfect add on to Kreg ACS
Just got this installed on my ACS table and it’s amazing. I no longer have to verify the sliding tape measures are proper aligned or fool with the cheap plastic material stops. This system is quality and precision. Takes the ACS to a whole new level. You won’t be disappointed.
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 may reflect recent improvements and therefore differ slightly from the product depicted. We reserve the right to change specification of products without notice.