To do efficient and accurate work on a table saw, there are several accessories required beyond the miter gauge and the rip fence that ordinarily come with it. To secure feather boards, stops, and special fences, I’ve used clamps to hold them in place, but the undersides of the table and its extensions didn’t have flat surfaces to accommodate clamp jaws. The same problem makes it difficult to clamp accessories to my bandsaw and drill press tables. When I happened upon Magswitches on the web, they seemed to be the perfect solution, promising they could “secure custom jigs & fixtures anywhere on your table top” with just the twist of a knob.The Magswitch company’s wide array of devices are built as magnets that can be turned on and off. Most of the products are meant for industrial use; the smallest of them, called MagJigs, are designed for the home woodworker. Inside the steel housings of a MagJig are two cylindrical magnets, one fixed to the housing and the other rotated by the knob at the top of the device. When the poles of the magnets are set north to north, south to south, the magnetic field is activated; when the poles are set in opposition, their magnetic fields almost entirely cancel each other. The steel housing takes care of the rest, and a MagJig that is turned off won’t even pick up fine steel filings.

Photographs by the author

The MagJigs I bought include two 60s (upper left), one 95 (lower left), and a pair of 150s with a universal base and reversible feather board.

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