Carbide burrs, often known as carbide rotary burrs are employed with high-speed electric mills or die grinders to process metal, wood, plastics, etc. Carbide rotary burrs are popular in machinery, automobile, shipbuilding, chemical industry, craft carving, and other industries. Selecting the most appropriate carbide burr to your project is crucial. There are numerous methods for picking a high-quality tungsten carbide rotary burr.

Shapes of tungsten carbide rotary burrs
The design of the carbide rotary burr needs to be dependant on the contour of the workpiece. When processing the interior arc surface, a semi-circular burr or round burr (small diameter workpiece) ought to be used; when processing the interior corner surface, triangular burrs ought to be selected; when processing the interior right angle surface, a set burr and square burr could be selected. If the flat burr is used to chop the inner right angle surface, it is crucial to produce a narrow surface (smooth edge) without teeth close to one of the inner right angle surfaces, in order to avoid damaging the correct angle surface.

Tooth thickness of carbide rotary burrs
The thickness of burr teeth ought to be determined in accordance with the allowance size the workpiece, machining accuracy, and material properties. The coarse tooth carbide burr is acceptable for machining workpieces with large allowance, low dimensional accuracy, large form and position tolerance, large surface roughness value, and soft material; otherwise, fine-tooth carbide burr ought to be selected. When used, it needs to be chosen based on machining allowance, dimensional accuracy, and surface roughness necessary for workpiece.

Sizes of carbide burrs
The size and specification of cemented carbide rotary burr should be selected based on the size of the workpiece and machining allowance. When the machining dimensions are large along with the allowance is large, cemented carbide rotary burr which has a large size should be selected, or even a tungsten carbide rotary burr which has a small size ought to be selected instead.
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