Carbide burr | ball shape | shape D
This ball-end carbide burr (ISO code KUD) is a durable and efficient tool for precision metal machining. Made of wear-resistant tungsten carbide (solid carbide) and equipped with cross-cut (double-cut) flutes, it provides a long service life and high performance for deburring, contouring, and finishing. The tool is available in several sizes with a cylindrical shank to suit different machines and applications.
The carbide burr effectively handles the machining of stainless steel, alloys, and other hard-to-machine metals without rapid wear. It is particularly suitable for workshop tasks requiring high precision and surface quality. The tool is easily mounted in straight die grinders and provides immediate cutting action with vibration-free operation.
APPLICATIONS
Suitable for finishing, profile engraving, deburring, and preparation of weld seams in metal. Can be used in a range of workshop and industrial environments where precise and durable machining is required. The tool is compatible with various machines thanks to the different sizes available and features a cylindrical shank in multiple dimensions.
TECHNICAL SPECIFICATIONS
• Product type: Rotary carbide burr
• Standard: ISO 7755 / shape code KUD
• Grade: Solid carbide (tungsten carbide)
• Material class: Not applicable
• Thread type: Not applicable
• Surface finish: Bright
• Head shape: Ball (shape D; KUD)
• Grip type: Cylindrical shank, multiple sizes
• Cut pattern: Cross-cut (double-cut)
FREQUENTLY ASKED QUESTIONS (FAQ)
What characterizes a ball-shaped geometry (ISO code KUD / D) and when is it used?
The ball-shaped contour has a completely round cutting head. This geometry makes it the best choice for:
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Fillet and radius milling: Creating or smoothing internal radii and concave contours.
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Deburring drilled holes: Quick and controlled deburring around round hole edges and pipe ends.
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Mold machining: Cavity work, spot machining, and fine-tuning in concave mold areas.
What does double-cut (cross-cut) mean for precision and the working environment?
Double-cutting (intersecting cutting grooves) breaks the material into very short chips instead of long slivers. This provides three clear advantages for manual machining:
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Smoother operation: Reduces the tendency for the burr to "grab" or wander over the workpiece, providing higher precision during freehand machining.
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Better surface quality: Leaves a smoother surface finish that requires less secondary sanding.
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Less vibration: Reduces strain on both the operator and the machine spindle in straight die grinders.
Why is tungsten carbide (solid carbide) necessary when machining acid-proof and stainless steel?
Stainless steels (A2/A4) generate high heat during cutting and have a tendency to work-harden under pressure. Tungsten carbide (solid carbide) has extremely high hot hardness and wear resistance compared to conventional HSS tools. This allows the cutting edges to maintain their sharpness even at high speeds and cutting temperatures without wearing down prematurely.