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Multi-Shape Coated Rotary Carbide Burr Kit, 1/4 Shank for Die Grinders
Rainbow PVD coated burr kit in six shapes on 1/4 shanks – a coated head for every contour, in one kit.
Design and Construction
A six-shape kit where every head carries a rainbow multi-layer PVD coating: cylinder, cylinder ball-nose, ball, tree, cone and flame. The coating sits in the 3,000 HV class and lowers friction so chips wash off instead of welding to the flutes.
How It Works
Coated flutes stay cleaner through sticky alloys and long passes; shapes cover the contour map so one kit handles flat, concave, corner and weld work.
Applications
Stainless fabrication, mixed-alloy maintenance, visible-finish work and detail shaping.
Field Cases
- Stainless fabricator: the coated kit stopped end-of-shift chip-welding cleanup on 304 seams.
- Maintenance team: six shapes covered a pump-rebuild job without opening a second case.
- Show-finish shop: rainbow heads are kept for visible welds – finish plus identification.
Performance Data
| Metric | Value / Observation |
|---|---|
| Coating class | Multi-layer PVD nitride, about 3,000-3,500 HV (published coating data) |
| Friction effect | Lower chip welding on stainless and low-carbon steel |
| Set coverage | Six shapes, 1/4 shank throughout |
| Identification | Distinct colour separates detail heads from roughing heads |
Suitable Materials
Stainless steel, low-carbon steel, cast iron and non-ferrous metals.
Material Comparison: Coated Kit vs Uncoated Kit Across Six Shapes
What the coating adds shape by shape – typical industry data:
| Shape | Coated (this kit) | Uncoated |
|---|---|---|
| Cylinder | Cleaner passes on mild steel | Loads sooner on gummy plate |
| Ball nose | Stainless blending without smear | Smear builds on 304 |
| Tree | Long weld runs stay sharp | Edge rounds faster |
| Cone | Countersink blends stay crisp | Edge loading |
| Flame | Seam dressing with less heat colour | Heat marks on thin sections |
Delivery Scope
Six coated burrs in kit packing; shapes can be mixed per order.
Why Choose VPOINT
In-house coating means the kit geometry and the coating were chosen together.
Precision & Quality Control
Coating adhesion sampled per batch alongside geometry checks.
Specifications
Kit composition:
| Item | Specification |
|---|---|
| Shapes | 6 (cylinder to flame) |
| Shank | 6 mm (1/4″) |
| Coating | Rainbow multi-layer PVD |
| Head material | YG carbide |
Frequently Asked Questions
Is the coating only cosmetic?
No – it is a multi-layer PVD nitride in the 3,000 HV class.
Which shape for welds?
Flame for seams, tree for crown blending.
Can I buy half-coated kits?
Yes – mixed coated/uncoated kits are common wholesale orders.
Aluminium?
Use the aluminum-cut option; the coating helps most on steels.
Recoat after regrind?
Possible on request for volume users.
Related Search Terms
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