The Whiteside 5980 Shaker Profile Raised Panel Router Bit creates a relieved edge on flat solid panels for classic Shaker style Frame and Panel doors and cabinets. It also matches well with Craftsman style furniture. The bit has a 15 degree relief angle, and it comes with 3-bearings to allow production of relief widths of 1/8", 3/16" or 1/4". Designed to be used with the Whiteside Shaker Stile and Rail Set (#R5990). Bit has 2 wings and is carbide tipped. 1/2" shank. Whiteside Machine Company - Claremont, North Carolina.