TSO Products

Power-Loc Bench Connector Dog

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  • With a specially crafted swivel nut, the Power-Loc bench dog relies on an offset cam action to secure panels--no need for a separate clamping knob!
  • The Power-Loc Bench Dog is an all-in-one solution for connecting and securing 20mm worktops, supporting a combined stock thickness from 32mm (1-1/4") to 40mm (1-9/16").
  • This view shows the Power-Loc Dog with its clamping nut secured inside the body, making it easy to insert into a 20mm dog hole from above.
  • Exploded view of the Power-Loc Bench Connecting Dog.
  • Power-Loc Bench Connector Dogs are secured using an M5 Allen wrench or driver (not included).


Note Power-Loc™ Dogs are sold individually—not pairs.
Power-Loc Dogs are secured with a 5mm hex key or driver. We offer a quality 5mm hex driver, sold separately.

Bench Connector Dogs Which Ingeniously Clamp from Above

Extend and connect multiple 20mm worktops with bench connecting dogs
Watch this video to see how easily you can extend and connect your 20mm worktops with Bench Connecting Dogs.

The latest addition to our growing line of Bench Connectors, Power‑Loc Dogs feature a patent-pending innovative cam action and swiveling locking lug that eliminates the need to use a clamping knob from beneath your workbench. Simply insert the Power-Loc Dog through the top of a chamfered 20mm dog hole, turn the socket head cap screw clockwise, and watch as the locking lug rotates outward and secures your worktops together. Power-Loc Bench Connector Dogs feature a total stock thickness capacity range from 30mm (1-3/16") to 40mm (1-9/16").

What's a "Bench Connector" Dog?

Modular and expandable work surfaces are nothing new, but craftsmen like Ron Paulk are pushing the concept forward with super lightweight, stowable, and flexible work surfaces. These designs utilize the familiar 20mm hole pattern as attachment points for layering additional work surfaces or jigs. Unlike traditional bench dogs which protrude from the work surface to act as a material stop, Bench Connector Dogs feature a chamfered lip that seats flush or slightly underneath your work surface.

While simple clamps can be used to layer and secure 20mm work surfaces, we're partial to Bench Connector Dogs for two main reasons: they provide precision registration and alignment of your work surfaces, and they apply strong clamping pressure without taking up valuable space on your worktop.

Picking the Right Bench Connector

The advantage of Power-Loc Dogs come in their self-contained clamping method. Rather than requiring an M8x1.25 clamping knob be attached and secured from underneath the table, Power-Loc Dogs are secured from the top of the table by way of an 5mm hex key or 5mm hex driver. This above-table clamping action may be preferred if the underside of your table is inaccessible, or if you don't wish to purchase or store additional clamping knobs.

Avoid over-torquing the Power-Loc Dog. A "snug fit" of the locking lug against the bottom work surface is all that is required.

To flush mount Power-Loc Dogs, you will need to chamfer the 20mm holes on your work surface. We recommend using a trim router with a quality 45˚ chamfer bit, as this allows you to perfectly adjust the depth of the chamfer to match these bench dogs. We do not recommend using the UJK Chamfer Tool in this instance, as its cutting depth is fixed and it is only recommended for MDF (not plywood).

See How Bench Connector Dogs Work


Dimension drawing


  • Materials: 300 series stainless steel, Buna-N rubber
  • Clamping Range: 30mm (1-3/16") to 40mm (1-9/16")
  • Weight: 92g
  • Adjustment: Requires 5mm hex driver or key (sold separately)

Power-Loc Dogs are patent pending.

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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 (
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30 Reviews

  • 5
    Power loc bench dogs

    Posted by Bryan Thrush on 1st Mar 2024

    These exceeded my expectations.

  • 5
    see image to left

    Posted by Randy on 21st Jun 2023

    Precision parts work well with my project.

  • 5
    Power-loc Dogs

    Posted by Mario G on 27th Mar 2023

    These dogs are amazing. Now dreaming of all the jigs that I can attach to my table with these. Pocket hole jig is first.

  • 5
    Great product

    Posted by Calvin Newton on 14th Mar 2023

    These are not cheap but they are also not cheaply made. Very high quality and work even better than expected. I would not hesitate to buy them again

  • 5
    Bench dog connectors

    Posted by Robb Martin on 7th Mar 2023

    precisely machined and fits like a glove

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