GRC-12: A Better Way to Connect Guide Rails
Watch this video to see how the GRC-12 auto-aligns and secures two guide rails at the same time, while eliminating the need for expensive straight-edges.
Another TSO innovation, the GRC-12 is a first-of-its-kind, self-aligning guide rail connector for use with Festool, Makita, Triton, and Kreg ACS brand guide rails. Before the GRC-12, aligning connected guide rails required a variety of methods and additional tools to achieve straight connections, with misalignment often difficult to detect without a long straight edge or similar tool. This issue becomes obvious too late - when gaps show up during assembly or glue-up.
The GRC-12 TSO guide rail connectors solve this problem with a completely self-contained and self-aligning design - thanks to an innovative integral keystone feature. Simply slide the GRC-12 into your guide rail T-slots and firmly tighten the set screws - that's it.
Because small hex wrenches can be annoying to deal with, we’ve solved that too: the included ball hex driver drops easily into the hex socket and is large enough not to get lost or easily overlooked.
Key Features of the GRC-12
- Connects AND aligns in one operation, with no need for secondary tools such as a level.
- Easy, fast, accurate!
- Only perfectly aligned rails can produce perfectly straight cuts.
- Unique Patent Pending design helps keep rails aligned.
- GRC-12 keeps rails aligned with it's Keystone-shaped Connector feature.
- Connected and DONE!
What's Included In the Box
- GRC-12 Guide Rail Connector (2)
- M6 Set Screw, Stainless (8)
- M3 Ball Hex Driver (1)
- Dimensions: 12 x .45 x .25 inches (305 x 11.5 x 6.4 mm)
- Weight: 2 oz. (60 g)
- Material: 6061-T6 aluminum, CNC machined finish
- Compatible Guide Rails: FESTOOL FS Series, MAKITA, Kreg ACS 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)
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Other DetailsTSO 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 (email@example.com).
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62 Reviews Hide Reviews Show Reviews
The GRC-12 Self-aligning rail connectors function as advertised, I connected two tracks without using a straight. I checked after with an eight-foot level and voila.
I have 75” and 55” festool rails and the accuracy with my TSO parallel guides+GRE guide square is unmatched. TSO products are the best. Nothing comes close!
Sometimes the best innovations are simple, and this is one of them. As the description says and video shows this aligns the tracks perfectly. No more fussing with a long straight edge, or putting your track saw between the rails to hold them in place. A certain brand that begins with the letter F and has the word tool in the name has also come up with self-aligning connectors, but they have expanding metal screw holes. The flaw in that design is that the metal will eventually become weak and break from installation and removal. These made by TSO have no moving parts to wear out or break. The design is simple and genius. Highly recommended!
Outstanding product quality with unparalleled customer service.
Was skeptical that this would work, but idea sounded good and found a place I could return if needed. They work great to fix alignment issue with Makita rails. With Makita connectors track would be slightly misaligned where tracks meet. This caused the saw to catch and bind when fit tightly on the track guide. The Makita connectors alignment was definitely not good enough to use two short rails together. This makes the alignment pretty good and I won't have to buy the 118" rail.
I bought the connectors with the small piece of guide rail and had it attached to a 55 in guide rail . this assembly was leaning against a wall and got bumped and fell to the floor bending both connectors. The guides were unharmed so I bought a new set of connectors and will be more careful. If they had been made from steel I believe they would have not gotten bent. I would have rated them 3 1/2 stars had it been an option. and 5 stars had they been made from steel
The work very well. It's nice to not have to use a straight edge to get these things on. Only problem I see is that I thought they would be made out of steel like the Festool connectors I have are. These are aluminum, and they do and will bend. Be very careful how you move the rails when you are connecting these because I had one connector tightened on both ends, then went to flip the rail over to tighten the other connector and I could see it flex because it was by its self. They need both to be tight so they can support each other. If only one is tight, it will bear all forces by itself. I recommend TSO make these out of steel. Otherwise, great design.
This is the way Festool should have designed their connectors. Excellent engineering and quality. The self-aligning feature and set screws make using these a snap. Thanks for designing a great product.
I originally bought some Makita guide rail connectors. I was unimpressed with the flimsy, thin piece you are supposed to use in one slot... It doesn't even have screws to hold it in place! The machining on the TSO guide rail connectors is so nice and accurate, it locks my two pieces of track together solid, rock solid! The machined 'lip' just makes these so much better designed and work so much better than the first ones I bought! Worth every cent!
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