Magswitch Switchable Magnetic Square Once you use Magswitch MagSquares, you’ll have to have them in your tolbox. Our MagSquares provide a new level of fast and easy multiplane workholding when positioning steel. Magswitch MagSquares exert a powerful magnetic field with a simple 180-degree rotation of the knob. Features Simple and fast No need for tedious clamping Holds on flat or round surfaces Grips on three sides Fast, strong, and precise positioning Extremely powerful - 30mm - up to 150-lbs breakaway on flat 1/4 inch-thick steel 50mm - up to 550-lbs breakaway on flat 1/4 inch-thick steel 70mm - up to 1000-lbs breakaway on flat 1/4 inch-thick steel Use MagSquares to mount workholding jigs Pre-tapped holes on all sides for mounting Magswitch has created a powerful magnetic device that can be turned on and off with a simple half turn of a knob No batteries No electricity Magnets CANNOT be shipped via air. Free standard ground shipping within contiguous U.S. Availability: Usually ships the next business day. OKI8100054Mfg Industrial Price: $39.99Cyberweld Price: $36.00 Size: 30mm50mm (+$76.49) 810010670mm (+$233.10) 8100099 All prices shown are in U.S. Dollars The Cyberweld® name, logo and the slogan "Weld with your mouse"® are registered service marks of: J.W. Goodliffe & Son, Inc. 1900 E. Elizabeth Ave. P.O. Box 4370 Linden, NJ 07036 (800) 419-0580 FAX (908) 486-9366 Phone answered live M-F 8:00am to 4:30pm EST © 2000 - 2009. All rights reserved.