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TSO Products

GRS-16 PE v2 Parallel Edge Guide Rail Square

(338 reviews) Write a Review
SKU:
61-519
TOP SELLER
  • The ultimate accessory for Festool, Makita, Milwaukee, Powertec, Triton, and WEN track saw systems.
  • Achieve perfectly square cuts in record time with the GRS-16 PE v2 Guide Rail Square.
  • The GRS-16 PE is now compatible with Milwaukee's M18 FUEL plunge saw!
  • Once attached, the GRS-16 PE v2 becomes a rigid part of your guide rail.
  • High strength, custom draw latch with dipped coating protects your guide rail.
  • Your guide rail is completely supported by the full-height, precision machined mating edge of the GRS-16 PE v2.
  • Perfectly balanced, the GRS-16 PE v2 is suitable for use off the front or back edge of the workpiece, unsupported.
  • Once clamped, just slide the assembly up to your workpiece and start making square cuts.
  • New in v2: insert square at any point along the rail, avoiding clamps, hose deflectors and other accessories occupying the guide rail's bottom T-slot.
  • Clamping slots on both reference edges of the GRS-16 PE accommodate T-track clamps such as Festool's Screw Clamps and Quick Clamps.
  • The GRS-16 PE v2 can square off the front or back of your workpiece.
  • Use the GRS-16 PE to square off either the front or back of your workpiece.
  • Cut down the bottom of doors with ease using the GRS-16.
  • Use the GRS-16 PE v2 in place of a Guide Rail Adapter with the TSO Parallel Guide System.
  • Compatible with the TSO Parallel Guide System. Shown here with TPG-20 track.
  • Compatible with the TSO Parallel Guide System.
  • Get perfectly parallel, repeatable cuts when you add the TSO Parallel Guide System to your Guide Rail Square.
  • Extend your guide rail square's effective reference edge thickness and length with our optional Angle Accessory.
  • Two guide rail squares fit neatly into a Systainer with our custom foam insert (sold separately).
  • Use the GRS-16 with the Parallel Guide System Gen 2, using our Guide Rail Square Connector (both sold separately).
  • Still proudly made in the USA!
$199.95
Frequently bought together:

Description

Square Cuts Made Fast and Easy with Your Track Saw

Breaking down sheet goods is easy with a TSO Guide Rail Square in your shop. This must-have track saw accessory turns your guide rail into a large, precision square, enabling fast and accurate 90-degree crosscuts with less setup time, less marking, and fewer errors.

The GRS-16 PE v2 Guide Rail Square is perfect for crosscuts on sheet goods and is compatible with Festool, Makita, Milwaukee, Powertec, Triton, and WEN track saw systems.

Key Features

  • Born Square: A proven design, CNC-machined from a single block of 6061-T6 aluminum, will never require fine-tuning or calibration.
  • Work Faster: No need to scribe your cutting line; make a small tick mark at your desired cutting position, align the guide rail, and you're ready to start cutting.
  • Fewer Errors: Cut your marking and measuring in half, and with it, your chances of making a mistake that costs you valuable time and materials.
  • Parallel Edge: Reference your work from the front or back edge to fit your workflow.
  • Solid Connection: A latch coating grasps the guide rail and protects it from damage.
  • Drop-on Convenience: Quickly attaches without the need to remove accessories, like hose deflectors, track connectors and clamps.
  • Clamp Compatible: Notches on both reference edges provide room for your favorite track clamp. Including the Festool Screw Clamp (489570), Ratcheting Clamp (491594), and Axminster guide rail clamps.
  • System Approach: Compatible with the TSO Parallel Guide System for making repeatable square and parallel cuts in one workflow.
  • Anodized Blue: Provides a beautiful, durable, and non-marking finish.

See How It Works

Read our Guide Rail Square User Guide to learn about proper use and maximizing its benefits for your woodworking projects.

PRO TIP PRO TIP #1: Never use the factory edge of your material as a reference to your Guide Rail Square. For maximum accuracy, start by removing a thin slice of material to establish a perfectly straight reference edge. Learn more.

Trusted by Experienced Woodworkers

TSO Guide Rail Squares are highly praised by professional cabinet shops to seasoned woodworkers and discerning hobbyists. Here’s what real customers have to say:

“Easy to attach, solid & square!” – Wallace, Feb. 2024
“Very precise and worked perfect right out of the box.” – Ronnie, Jan. 2024
“Speechless. So simple and effective. Great design.” – Greg, Mar. 2024
“…performs as good or better than a table saw without the hassle! A portable cabinet shop!” – Ronald, Jan. 2024
“Although this was a splurge I cannot imagine not having it. Perfect every. single. time.” – Teri, Mar. 2024
“Has saved me from messing up a bunch of cuts. Would highly recommend.” – Gary, Aug. 2023
“Love the ‘quick connect' feature.” – Bryan, Oct. 2024

PRO TIP PRO TIP #2: Making longer cuts? Consider the TSO Parallel Guide System for longer rip cuts of 4 to 8 feet.

Compatible Accessories

Guide Rail Squares Fitting Other Brands

Technical Details

  • Dimensions: 15.2 x 6.0 x 1.4 in. (386 x 152 x 36 mm) - click here for dimension drawing
  • Weight: 1.9 lbs (862 g)
  • Material: 6061-T6 aluminum, anodized, 5/8 in. (15 mm) thick
  • Compatible Guide Rails: Fits Festool, Milwaukee, Makita, Powertec, Triton and WEN.
    • Not compatible with Festool HK 55 Carpentry Saws including the FSK 250, FSK 420 and FSK 670.
    • Not compatible with Bosch, DeWalt, Ridgid or Kreg tracks. (See other models.)
  • 5-Year Warranty: Your TSO Guide Rail Square is guaranteed to be free of defects in materials or workmanship.
  • Patented Innovation: Protected by U.S. patents 10,363,681; 10,434,678; 12,017,318 and Canadian patent 2,994,319.
  • Made in the USA

Documentation

Proudly Made in the USA

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Videos

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Warranty & Returns

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).
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338 Reviews

  • 5
    Parallel edge.guide square

    Posted by Todd Jennings on 2nd Sep 2026

    Bought this after buying more expensive adjustable one from the red company. The red company makes beautiful products but the 90 degree mark on mine wasn't just right. I was using walnut plywood and trying to add 1" wide mitered walnut trim around the perimeter. The mitered corners of the trim weren't right. I finally figured out it was because the walnut plywood i had trimmed to size using the red company's product wasn't square. Bought this. So easy. Clicks in place. Dead 90 degrees. Quite a bit lighter than the other one also. I'll use the red company one when I want different angles with my track saw, but this is what I'll use when I want dead on 90s

  • 5
    Fit and finish

    Posted by Michael Reams on 28th Aug 2026

    Very nice square but for the price it would be nice if it came in a padded vinyl sleeve

  • 5
    GRS-16 PE v2 Parallel Edge Guide Rail Square

    Posted by Nels on 25th Aug 2026

    This thing is freakin' amazing. I had fully expected my guide rail to be off by a millimeter or two over the length of a full sheet of plywood, but it was dead square and true. You guys rocked my world on this one.

  • 5
    Top quality and precision built

    Posted by Mark Smith on 19th Aug 2026

    It aligns my project’s nicely

  • 5
    Great tool!

    Posted by William Whitman on 27th Jul 2026

    Used it about five times already. My second product from TSO.

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Availability Update: We appreciate the enthusiasm for Parallel Guide System Gen 2. Availability can vary as demand remains strong, but more units are underway, with inventory improving. Thanks
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