Carbide burrs, also called carbide rotary burrs are employed with high-speed electric mills or die grinders to process metal, wood, plastics, etc. Carbide rotary burrs are trusted in machinery, automobile, shipbuilding, chemical industry, craft carving, and other industries. Selecting the right carbide burr for the project is of great importance. There are numerous strategies to deciding on a high-quality tungsten carbide rotary burr.

Shapes of tungsten carbide rotary burrs
The contour of the carbide rotary burr needs to be determined by the form with the workpiece. When processing the inner arc surface, a semi-circular burr or round burr (small diameter workpiece) should be used; when processing the interior corner surface, triangular burrs must be selected; when processing the interior right angle surface, a set burr and square burr could be selected. In the event the flat burr is employed to slice the interior right angle surface, it’s important to create a narrow surface (smooth edge) without teeth near one of many inner right angle surfaces, so as to avoid damaging the right angle surface.

Tooth thickness of carbide rotary burrs
The thickness of burr teeth should be determined in line with the allowance height and width of the workpiece, machining accuracy, and material properties. The coarse tooth carbide burr is suitable 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 needs to be chosen according to machining allowance, dimensional accuracy, and surface roughness essential for workpiece.

Sizes of carbide burrs
The dimensions and specification of cemented carbide rotary burr must be selected in line with the size of the workpiece and machining allowance. In the event the machining sizing is large along with the allowance is large, cemented carbide rotary burr having a large size must be selected, or possibly a tungsten carbide rotary burr with a small size should be selected instead.
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