Cutting Burrs

Cutting burrs are rotary cutting tools with fluted or shaped heads used for shaping, deburring, grinding, and material removal; common applications include steel, stainless steel, aluminum, cast iron, brass, plastics, wood, and composites depending on cutter material and flute geometry

Select the burr shape (cylindrical, ball, cone, flame, tree, etc.) based on the profile you need, and choose cut pattern (single cut for smooth finishing, double cut for faster material removal, or diamond/rasp for very hard materials) to balance speed and surface finish

Match the burr shank diameter (commonly 1/8" or 1/4") to your rotary tool, die grinder, or CNC collet capacity, and ensure the collet/runout specifications support the burr's maximum safe RPM for stability and safety

Burrs made from tungsten carbide provide wear resistance and heat tolerance for hard metals, while high-speed steel is used for softer materials; coatings like titanium nitride can reduce heat buildup and extend life, but choose material/coating based on the workpiece hardness and cutting speed

Use the manufacturer's recommended maximum RPM as a guideline; generally higher RPMs suit small-diameter carbide burrs while lower speeds and light, consistent feed reduce chipping—avoid side-loading, excessive force, and abrupt direction changes

Keep burrs clean of buildup using appropriate solvents or ultrasonic cleaning, avoid overheating during use, store in individual slots or a labeled case to prevent nicking, and inspect for wear or missing teeth before reuse

Wear safety glasses or a face shield, hearing protection, cut-resistant gloves, and a dust mask or respirator for airborne particles; secure the workpiece, maintain proper tool guards, and disconnect power before changing burrs