【Dimensions】Shank diameter: 8mm, Cutting height: 10mm 9.5mm 13mm, Cutting diameter: 19mm 22mm 25mm, Total length: 53mm 52mm 55mm. 【Material】Rounding router bit made of YG6 carbide and 45# carbon steel, the blade is sharp, the shaft is strong, the surface is coated, anti-rust, long service life. 【Design】Woodworking router bit mainly for sharpening. These tips can also be used to make clean rounded profile edges. High abrasion resistance, high-precision grinding technology to remove chips more smoothly. 【Applicable Scenarios】Can be used as a standard blade knife without bearing, ideal for models and model guiding. Suitable for wooden door frames, wooden window frames and cabinet frames. 【Applicable Materials】This professional wood rounding cutter is suitable for wood, MDF, particleboard, plywood, acrylic and various wood composite materials (avoid cutting metal and non-wood materials such as steel, iron, sand, etc.). Specifications Material: main blade alloy yg6, blade body 45 carbon