High precision and high strength – Made of strong, durable tungsten alloys, this high-quality router bit ensures professional and ultra-precise machining on wood. Long working life – Clean cutting, smooth rotation, fast operation, high hardness, and good wear resistance significantly extend service life. Anti-kickback solid design – Steel body hardened with anti-kickback balanced design, equipped with high-quality guide and bearings. Stem diameter: 8 mm – Blade diameter: 12 mm; Blade length: 13 mm. Usage – Suitable for handcraft or woodworking applications including MDF, solid wood, particle board, wooden door frames, wooden window frames, cabinets, and boxes. Features: Stable quality, high efficiency Flush trim pattern router bit with top and bottom bearings Carbide tipped – Micro grain grade provides increased strength and superior resistance Heat-resistant coating helps prevent the accumulation of wood chips, resin, and pitch Specifications: Material: Carbide tipped Blade lengths: 13 mm, 20 mm, 25 mm Colors: Black, Yellow, Blue Package included: 3 sizes x Grooving cutter