Description: This Top and Bottom Bearing Router Bit is great for all your large stock trim applicatons This bit can be used with either a top or bottom template. Especially useful for template work when routing rounded or curvy wood with sensitive end-grains. The top and bottom bearings allow you to flip over the wood stock when you reach"up-grain" and rout that segment in a "down-grain" direction, maintaining uniform smoothness around the work-piece. Specification: Overall length: approx.11.7mm/ 0.46 inch Bearing Outer Diameter: approx. 3/4" Cutting Height: approx. 1/2" Shank Diameter : 1/2" Material: Body: Solid Hardened Steel Blade: Grain Carbide Package Includes: 1 Piece Flush Trim Router Bit