TSO Products, Bench Dogs, DoubleGroove™, Ø-20mm, Medium, 2 Pack

  • R 379.90

TSO Products have reinvented the modern 20mm bench dog and, in the process, addressed some common frustrations. Having dealt with their fair share of ill-fitting or "stuck" dogs, they have designed their dogs with twin grooves that run along the collar. DoubleGroove Dogs are just part of a complete line of innovative workholding solutions from TSO Products.While it may not seem like much, these double grooves make it much easier to remove the dog once it has been installed. Sharing the same careful attention to detail that has set TSO Precision Tools apart, small but important design elements—like the tiny undercut beneath the collar that guarantees a perfect 90 degree transition, even if the holes in your work surface aren't perfectly devoid of tear-out, or slight chamfers along the touchable surfaces—result in a tool that's comfortable, accurate and a pleasure to use.

DoubleGroove™ Medium Dogs measure 24mm from collar to bottom, making them the perfect size for use with the TSO PTR-18 Precision Triangle or thicker perforated worktops.

To accommodate clamping, an included M8x1.25 threaded hole at the bottom of each dog accepts the TSO M8 SpeedKnobs™, FESTOOL® M8 knobs from the clamping elements kit, or any other similar off-the-shelf M8x1.25 threaded knob.

All DoubleGroove™ Bench Dogs are made in the USA from 6061-T6 aluminium on high-precision CNC machining centres and are clear anodised for maximum durability. Sold in pairs.

The TSO DoubleGroove™ Bench Dog family includes a variety of sizes: Small (ideal for most general use applications), Medium (for use with the PTR-18 Precision Triangle or thicker work surfaces), Large (for use with the MTR-18 Precision System Triangle), Tall (for using in conjunction with UJK Dog Rail Clips to secure your guide rail to your worktop), and the Stubby (also designed for use with UJK Dog Rail Clips, but with a shorter height to clear your track saw motor housing when plunge cutting).

Additionally, specialised "Close Fit" versions of the TSO Small Bench Dogs and Tall Bench Dogs  are available for those who want a tighter fit in 20mm worktops made with precision tools (e.g. CNC router Systems or the Parf Guide System).


  • Easier to Use: Twin grooves running along the collar make DoubleGroove Bench Dogs easier to remove than other dogs on the market; no more stuck dogs!
  • A Perfect Fit: Precision machined to exacting tolerances, with a diameter of 19.9mm to strike the perfect balance between solid, secure mounting and ease of insertion/removal.
  • Ideal for Custom Worktops: If you've made your own perforated worktop based on the 20 x 96mm Standard, and you aren't quite sure if your tolerances are perfect, you'll likely find DoubleGroove Bench Dogs to be a better choice. Their twin collar grooves will make it easier to remove dogs that might become "too snug," and a swept undercut along the collar means DoubleGroove Bench Dogs will mount completely flush even if your holes have tear-out.
  • A Great Companion: DoubleGroove Medium Bench Dogs are the perfect companion to the TSO PTR-18 Precision Triangles.
  • Clampable: Each dog includes an M8x1.25 threaded hole, perfect for use with the TSO 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 that the TSO SpeedKnobs™ are much faster and easier to thread.)


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