the FletaMATERIAL --- Made of 45 high carbon steel and alloy, high quality welding, stable quality and high efficiency SIZE --- Shank Diameter: 8mm; Cutting Diameter: 1/2" (12.7mm); Cutting Length: 50~76mm; Total Length: 97.5~123mm FEATURES --- The cutter is made of cemented carbide for high hardness and long service life; The main function is trimming, three-dimensional clearance angle, slot APPLICATION --- Top Bearing Router Bit Set Cuts all composition materials, MDF, solid wood, particle board, plywood, etc. PACKAGE INCLUDED --- 3 x 8mm Flush Trim Router Bits Features: 1. Sharp edge, high hardness, high quality welding, stable quality, high efficiency 2. Solid hardened steel bodies with anti-kickback design provide increased strength and maximum resistance. 3. Totally enclosed and lubricated 4. Top and bottom bearing router bit is perfect for all your large stock trim applications 5. This bit can be used with a upper or lower template. Particularly useful for template work when routing rounded or curved wood with sensitive end grains