Xtreme Xtension is hefty enough to safely give up to an extra 1-1/4" of reach to any router with a 1/2" collet. Made from fatigue proof steel, and dynamically balanced, it has a 1" deep bore, so it can provide substantial support for even the shortest shank bits. It accepts either 1/4" or 1/2" shank bits with cutters ranging from 1/4" to 3-1/2" in diameter.
A 1-1/2" diameter hole is required to allow the extension to go above the table surface. Not for use with hand held routers, routers without variable speed controls, or fixed based routers which have not been properly modifed to work in a router table or lift mechanism. Set includes an extension, a 1/4" reduction sleeve, and hex wrench. USA