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TSO Products 61-409 20mm Bench Dogs - Small Pair
TSO Products 61-409 DoubleGroove 20mm Close Fit Bench Dogs - Small Pair


 
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Product Code: TSO-61-409
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TSO Products 61-409 DoubleGroove 20mm Close Fit Bench Dogs - Small Pair

Features
To create the most accurate 20mm worktop, you need the best fitting 20mm dog. That was our design intent when we set out to create the CF-Dogs or "Close Fitting" Dogs. Most 20mm dogs on the market feature a 19.90mm body, which fits well in the Festool MFT/3 but can result in needless play when used with the Parf Guide System or a 20mm worktop made with precision by CNC router. Instead, our CF-Dogs feature a 19.98mm body providing a near zero clearance fit when inserted into a 20mm bench dog hole.
The introduction of Peter Parfitt's Parf Guide System (PGS) now provides the everyday woodworker a means to create highly accurate 20mm patterned worktops to near-CNC accuracy. This system relies on a drilling jig that is indexed to the table via two 20mm bench dogs. Because our CF-Dogs fit into this drill guide and indexing holes with near-zero clearance, you will achieve more accurate hole positions compared to using a traditional 20mm bench dog. This is why our DoubleGroove™ CF-Dogs are the perfect add-on for those using the Parf Guide System.
The usefulness of our DoubleGroove™ CF-Dogs is not limited to those using the Parf Guide System. Many woodworkers are creating custom 20mm tops with CNC routers capable of machining holes accurate down to ±0.002” (0.050mm). With this kind of accuracy, many discover that their traditional 20mm bench dogs now fit with too much play; a problem that can be solved with DoubleGroove™ CF-Dogs.
DoubleGroove™ CF-Fit Dogs are available in two sizes: small (the product on this page, ideal for use with the PGS) and tall (for use with our Dog Rail Clips).
DoubleGroove CF-Dogs are distinguished by their slightly larger body diameter, 0.003" (0.08 mm) to be exact. While this change may seem minute, it makes all the difference in eliminating any unwanted play that may be present when a standard 20mm dog is inserted into a precision cut 20mm hole. A CF-Dog can be easily identified by the addition of a single annular groove in its top surface.
  • Easier to Use: Twin grooves running along the collar make DoubleGroove Dogs easier to remove than other dogs on the market; no more stuck dogs!
  • A Special Fit: Precision machined to exacting tolerances, with a diameter of 19.98mm to fit snugly in precision-machined 20mm holes.
  • Ideal for High Precision Custom Worktops: If you've made your own perforated worktop based on the 20x96mm standard and aren't quite sure if your tolerances are perfect, you'll likely find our general purpose DoubleGroove Dogs to be a better choice. But if you've made your work surface using a CNC router or a high precision method such as the Parf Guide System, these CF-Dogs should provide a better fit.
  • Clampable: Each dog includes an M8x1.25 threaded hole, perfect for use with our SpeedKnobs to secure the dogs inside your 20mm perforated worktop. (If you already have the knobs from Festool's 488030 Clamping Elements, those will work too, but you'll find our SpeedKnobs to be much faster and easier to thread.)