This is a professional 1/4" shank top & bottom flush trim router bit for carpenter hand making projects of any level of complexity, processing solid wood, hard wood, particle board, hand making a drawer, plywood or other woodworking. You can use the router bit to make routing rounded or curvy wood with sensitive end-grains. Features:Brand new and high quality, perfect for large stock trim applications.Industrial standard 1/1" shank pattern flush trim router bit with 1/2" blade.Made of 45 high-carbon steel and alloy, high-grade welding, stable quality and high efficiency.Top and bottom bearing router bit is great for template work with either a top or bottom template.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:Color: Black SilverMaterial: 45 High-carbon Steel AlloyBlade Width: 1/2" (12.7mm)Blade Height: 1" (25.4mm)Shank Diameter: 1/4" (6.35mm)Overall Length: 3" (76.2mm)Bearing: Totally Enclosed & LubricatedItem Weight: 33g / 1.18ozPackage Weight: 35g / 1.25ozPackage Size: 8.5 * 2 * 1.8cm / 3.35 * 0.79 * 0.71inPackage List:1 * Top & Bottom Flush Trim Router Bit1 * Storage Box