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Taper Shape with Radius Tungsten Carbide Rotary Burr (Double Cut)
Taper-with-radius double-cut carbide burrs for internal tapers, countersink blends and cone transitions.
Design and Construction
A taper head with a radiused nose, ground from integral YG carbide with double-cut flutes. The taper covers a range of angles in one tool where a straight cylinder would step, and the radius nose keeps the entry smooth.
How It Works
Presented to the work at the taper angle, the head cuts along its whole flank; the crossed flutes keep chips clear in deep internal work at 6,000-40,000 RPM.
Applications
Internal taper cleanup, countersink blending, valve-seat touches, cone transitions on castings.
Field Cases
- Valve shop: blends a seat taper after welding without re-cutting the seat angle.
- Casting finisher: cleans a tapered core-print boss on aluminium castings.
- Tool room: touches up a tapered gib surface on a machine slide.
Performance Data
| Metric | Value / Observation |
|---|---|
| Geometry | Taper with radius nose |
| Speed range | 6,000-40,000 RPM |
| Edge hardness | 1,300-1,500 HV |
| Typical taper coverage | Multiple angles per head profile |
Suitable Materials
Steel, cast iron, stainless steel and non-ferrous metals.
Material Comparison: Taper vs Countersink vs Cone for Angled Work
Three tools for angled surfaces – typical industry data:
| Factor | Taper Burr (this burr) | Countersink Tool | Cone Burr |
|---|---|---|---|
| Profile | Tapered flank + radius nose | Fixed-angle flanks | Steep cone |
| Angle flexibility | One head covers a span | One angle per tool | Point angle fixed |
| Blend quality | Radius prevents step marks | Sharp flank can step | Point scores |
| Typical job | Taper cleanup and blending | New countersinks | Deep-hole entry |
| Risk | None if matched | Wrong angle re-cuts the seat | Grabs on entry |
Delivery Scope
Burr in plastic tube; custom taper angles on request.
Why Choose VPOINT
The radiused nose avoids the step marks a sharp cone leaves on blended surfaces.
Precision & Quality Control
Taper angle and nose radius are template-checked per batch.
Specifications
Standard specifications:
| Item | Specification |
|---|---|
| Head shape | Taper with radius end |
| Cut type | Double cut |
| Shank | 6 mm (1/4″) standard |
| Head material | Tungsten carbide, YG series |
Frequently Asked Questions
What is the taper angle?
The standard profile covers common countersink-to-blend angles; exact drawings available on request.
Can it replace a countersink cage?
For cleanup and blending, yes – for new holes use a proper countersink.
Does the radius matter?
Yes, it is what prevents step marks where the taper meets the base surface.
Which materials?
Steel, cast iron, stainless and non-ferrous.
Custom angles?
Yes, produced on request.
Related Search Terms
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