TSO Products


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All SpeedKnobs™ are sold in pairs (purchase "1" quantity and you will receive two knobs).

A Pair of High Quality Knobs Worthy of Your Worktop

DoubleGroove Dogs are just part of a complete line of innovative workholding solutions from TSO Products. We've searched far and wide to bring you the best knobs to complement our DoubleGroove™ line of 20mm Bench Dogs. These high quality, German-made woodworking knobs are surprisingly easy to thread and, once engaged, spin with minimal resistance until cinched down—hence the term speedknobs. If you're familiar with using the knobs included with Festool's 488030 Clamping Elements, you'll find our SpeedKnobs to be much easier to use. These knobs feature an M8x1.25 thread with a 15mm long stud.

See SpeedKnobs In Action!

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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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19 Reviews

  • 5
    Great knobs for attaching bench dogs

    Posted by King Waters on 29th Dec 2022

    These dogs are designed to attach 20mm bench dogs to an MFT-type table. They truly lock in the dogs to keep a stable layout.

  • 5

    Posted by Robert on 27th Apr 2022

    Must have

  • 5
    Speed Knobs

    Posted by Thomas on 18th Dec 2021

    Well designed work great easy to attach.

  • 4

    Posted by Speed knob on 11th Nov 2021

    The speed knobs are great, threads are perfect so the work flawlessly. I gave them 4 stars instead of 5 because of the price. While these knobs are fantastic I have many different brands that work just as well at a 10th of the price.

  • 5
    Speed knobs

    Posted by Bob Mallum on 22nd Oct 2021

    These speed knobs are very well made to exacting standards. Highly recommend.

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