5 on/off magnetic MagJig95 with 95lb/43kg of vertical holding force.
MagJigs are the Ultimate Work holding Clamp. Nothing else like it  ever!
Incredible hold force in a simple 180 turn! Unmatched speed, strength and
precision in clamping, MagJig Magnetic Clamps have revolutionized table top
work holding in woodworking and industrial fixtures. Features fast, strong set
up anywhere on a steel or cast iron table or fence. Not limited by the miter
slot or table edge. Use in your custom jigs and fixtures by drilling a hole
using a 30mm Forstner bit (sold separately) into  thick material. Drill as
many holes as you want for as much strength and flexibility as you need by
simply dropping in more MagJigs. Featuring the patented technology for
complete on/off control, super strong , precise positioning.