Irwin Clamp-On Vise: $14.99, most box stores
Sometimes you need an extra pair of hands at the track, and the Irwin Clamp-On Vise is the perfect trackside helping hand. It weighs in at just 4 pounds so it is easy to travel with. It has a quick clamp on the bottom to lock it onto the edge of most tables, and it has a 3-inch clamp width and 1,250 pounds of clamping pressure. This vise is perfect for grabbing onto RC-sized parts weather you need to hold a part that needs to be drilled or you just need to hold shocks during a rebuild.
– Available At irwin.com