Premium Factory Matched Door Making Router Bit Sets w/ Backcutter! Infinity Tools factory matched Raised Panel and Rail & Stile router bits are perfect for making beautiful door panels and frames in 3/4" to 1" thick stock. Produced using the most premium raw materials and manufactured on state-of-the-art C.N.C. machinery, our Rail & Stile and Raised Panel router bits represent the finest quality on the market. The extra-sharp carbide profiles are precision ground on computer controlled equipment to ensure a perfect fit and leave the smoothest finish possible with minimal sanding. Three wing slot cutters and engineered shear cutting geometry are a big improvement over inferior quality sets that burn and tear your material. The factory matched Rail & Stile router bit sets on this page leaves an attractive 7/16" wide profile while cutting a full 1/4" thick tongue and groove joint to accept your raised panel.