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Expanding/expandable bench dog

Insert in a MFT hole, turn, and you'll be suprised that you can't remove it!

By rotating clockwise, the O Rings are compressed and expand to lock the bench dog into the hole. Turn counterclockwise and the bench dog will release.

To works it needs accuracy, depending your MFT table you should use one of the 3 provided sizes.

• Standard fit is for smaller holes (~ 19.9mm) - Default Bora Centipede table top holes
• Close fit is for perfect 20.0mm holes - Made with an accurate bit or a reamer
• Oversized fit is for bigger holes (~ 20.1mm)

I optimized the TPU profile for 90A / 95A, but result can vary depending the brand or the shore hardness, you may need some tries to get a good behavior from the O Ring.

You will need a M6x80 hex bolt and a M6 nut