Wood ROuter Bit Reamer Drilling Bit 21Mm Dia. Carbide Alloy Steel Tipped ROund Shank Cutter For Woodworking Blue 2 pcs

[Radian Cutter] Smooth chip removal and efficient work with radian curved design. [Specific Design] Higher efficiency and accurate positioning with 3-tooth cutter head. Perforation is more efficient. [Material] The drill bit is made of 45# steel and carbide alloy, sharper and more durable, high hardness, wear resistance, good toughness, heat and corrosion resistance. [Widely Application] For perforation of wood products, such as installing ball-shaped door latches, drawer locks, etc. Tips: Maximum speed: 2000RPM Used on desktop (stationary) equipment and cannot be used on portable power tools (such as hand drill or electric drill). Cannot drill metal and non-ferrous metal. To avoid causing damage, make sure there are no nails or other metal objects in the wood before drilling. The edge and tips of the opener should be sharpened in time..