Carbide burrs, also referred to as carbide rotary burrs are employed with high-speed electric mills or die grinders to process metal, wood, plastics, etc. Carbide rotary burrs are traditionally used in machinery, automobile, shipbuilding, chemical industry, craft carving, and also other industries. Selecting the right carbide burr for the project is important. There are many means of selecting a high-quality tungsten carbide rotary burr.

Shapes of tungsten carbide rotary burrs
The form from the carbide rotary burr should be based on the contour from the workpiece. When processing the inner arc surface, a semi-circular burr or round burr (small diameter workpiece) should be used; when processing the inner corner surface, triangular burrs needs to be selected; when processing the interior right angle surface, a designated burr and square burr could be selected. In the event the flat burr can be used to cut the inner right angle surface, it is necessary to produce a narrow surface (smooth edge) without teeth all-around one of many inner right angle surfaces, to be able to avoid damaging the right angle surface.

Tooth thickness of carbide rotary burrs
The thickness of burr teeth needs to be determined in accordance with the allowance size the workpiece, machining accuracy, and material properties. The coarse tooth carbide burr would work 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 should be selected. When used, it ought to be chosen based on machining allowance, dimensional accuracy, and surface roughness required by the workpiece.

Sizes of carbide burrs
The scale and specification of cemented carbide rotary burr should be selected based on the size the workpiece and machining allowance. Once the machining dimensions are large as well as the allowance is big, cemented carbide rotary burr which has a large size ought to be selected, or perhaps a tungsten carbide rotary burr which has a small size ought to be selected instead.
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