Magswitch Mag Jigs are revolutionizing woodworking and tabletop workholding. The Magswitch 8110004 20mm Mag Jig you get a fast, easy, and strong set up. There will be no more hassles trying to secure jigs on a work table. The 8110004 20mm Mag Jig works on any steel sturface table ot woodwordking table tool (table saws, jointers, shapers, band saws, etc.). Unlike C-clamps and other conventional holding and clamping tools, the Magswitch 8110004 gives you the flexibility to place it anywhere on the table. Using two or more on a jig is ideal. The Mag Jig has other uses, too, such as picking up nails or holding screws - the possibilities are endless!