Solid alloy steel router bit with alloy flute and fine grinding. Hardness up to 93-94.5, delivering a sharp cutting edge and long service life. The tool head and handle are welded with high frequency, seamless and solid for dependable use. One knife dual-purpose design enables economical trimming and smooth grooving, with no burr and a clean one-time molding finish. Item: shank router bits available in 8 mm, 12 mm, and 12.7 mm. Material: 45# steel. Key benefits - High durability: solid alloy steel and alloy flute with very high hardness for extended tool life. - Strong construction: high frequency seamless welding of head and handle for reliable performance. - Versatile operation: dual-purpose knife supports trimming and grooving in a single pass, reducing setup time and waste. - Clean results: designed to minimize burrs and produce smooth grooves and precise profiles. Compatibility and specs - Shank options: 8 mm, 12 mm, 12.7 mm to fit common routers. - Material: 45# steel, engineered for stable performance. Use scenarios - Edge trimming and profile shaping on hardwood or softwood to achieve finished edges. - Grooving for decorative slots, panel lines, or inlays in cabinets and furniture. - Dado or groove creation for joints and joinery, enabling precise one-pass machining. This router bit provides a balanced combination of toughness, precision, and versatility for typical woodworking tasks without sacrificing material quality or reliability.