Infinity Tools 1/2" Shank Backcutter Router Bits

It cuts a rabbet in the back of a raised panel so the panel's decorative face stays flush with the door frame instead of sitting recessed. See more joinery router bits.

They are designed for 3/4"-thick door panel stock, leaving a 1/4"-thick tongue after the backcut.

The 1/4"-thick tongue fits perfectly into the 1/4" groove cut by your stile router bits, ensuring a snug, accurate panel fit in the door frame.

They have a 1/2" shank and require a router with a 1/2" collet for stable cutting.

You need one when building raised-panel doors from 3/4" stock and you want the panel face flush with the frame. It pairs with rail-and-stile and raised-panel bits.

These backcutter bits are offered in Bevel and Radius profiles to match the back-face treatment you want.

The cutter diameter is 1-7/8" and the cutter height is 1/4", sized to produce the rabbet that leaves a 1/4" tongue.

Yes. Raised-panel and backcutting work is safest and most accurate in a router table. Browse our cabinetry & joinery tools for related equipment.

Yes. The 1/4" tongue produced by the backcutter is sized to fit the standard 1/4" groove made by stile bits, so they integrate into a typical door-making setup.

They are made by Infinity Cutting Tools. Explore the complete range in our carbide router bits collection.