Carbide burrs, also known as carbide rotary burrs are used with high-speed electric mills or die grinders to process metal, wood, plastics, etc. Carbide rotary burrs are widely used in machinery, automobile, shipbuilding, chemical industry, craft carving, and also other industries. Selecting the right carbide burr for the project is crucial. There are lots of methods for choosing a high-quality tungsten carbide rotary burr.

Shapes of tungsten carbide rotary burrs
The shape from the carbide rotary burr needs to be determined by the design in the workpiece. When processing the inner arc surface, a semi-circular burr or round burr (small diameter workpiece) needs to be used; when processing the interior corner surface, triangular burrs ought to be selected; when processing the inner right angle surface, a flat burr and square burr could be selected. When the flat burr is employed to cut the inner right angle surface, it is necessary to produce a narrow surface (smooth edge) without teeth near one of several inner right angle surfaces, so as to avoid damaging the correct angle surface.

Tooth thickness of carbide rotary burrs
The thickness of burr teeth must be determined in line with the allowance sized 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 needs to be selected. When used, it ought to be chosen as outlined by machining allowance, dimensional accuracy, and surface roughness required by the workpiece.

Sizes of carbide burrs
The size and style and specification of cemented carbide rotary burr needs to be selected based on the sized the workpiece and machining allowance. If the machining size is large and also the allowance is big, cemented carbide rotary burr having a large size should be selected, or perhaps a tungsten carbide rotary burr using a small size needs to be selected instead.
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