150 lb force Switchable Magnet

This low-profile (0.740"/19mm) 150 lb force switchable magnet has a 2-5/8" long integral attachment flange that can even be a jig in itself; for example, you can use it as a bandsaw fence when ripping an inch or two off a board, or use two magnets on a drill press for repetitive drilling. If a jig is going to be subjected to any significant rotational force, it is better to use two magnets on it so that rotational forces can be converted to shear forces. A good example is a featherboard for a table saw, where rotational forces are experienced when a board is just starting to enter the fingers and when exiting the fingers.

The magnet is particularly easy to install since it attaches to the edge of a jig; it does not have to be recessed into it. They usually can be mounted with ordinary wood screws, but for softwoods, MDF or chipboard, where pull-out strength can be less, we include machine screws and dowel nuts for more secure attachment. Although the magnet has pull-off resistance up to 165 lb of force in ideal conditions, you can expect a minimum of 150 lbs when attached to iron or steel 1/4" thick or greater.