This expandable hold down kit is the perfect accessory for securing hold downs, feather boards or any fixture to a table saw, bandsaw or router with a standard 3/4 x 3/8 inch miter gauge slot. Hold downs works via wedging action against the walls of the miter slot when wedge bolts are drawn upward in countersunk holes as locking knobs are tightened. When properly tightened, the hold down produces a tight and secure fit in the miter slot. Kit includes: 2 expandable 2-1/2" long miter bars, 2 star knobs, 2 wedge bolts and 2 washers.