Alpha
Alpha SL-4DC Included Angle Carbide Burr — 1/2″ Double Cut
Part No: SL-4DC | Barcode: 9342386017243 | Shape: SL — 14° Included Angle (Radius Cone)
The Alpha SL-4DC is a 1/2″ (12.70mm) included angle (radius cone) double-cut carbide burr with a 1-1/16″ flute length and 1/4″ shank. Featuring a 14° tapered profile with a rounded tip, this burr excels at accessing angled surfaces, deburring internal edges, and finishing tapered bores.
1/2″ Head Dia.
14° Included Angle
Double Cut
1/4″ Shank
1-1/16″ Flute Length
Tungsten Carbide
Suitable For
Mild Steel
Stainless Steel
Cast Iron
Tool Steel
Non-Ferrous Metals
Hard Facing Alloys
Key Features & Benefits
- 14° included angle with radius tip — reaches into tapered cavities, V-grooves, and angled surfaces that cylindrical or ball shapes cannot access.
- CNC precision-ground flutes — delivers consistent cutting performance with reduced vibration and longer tool life across repeated use.
- Double-cut cross-flute pattern — produces finer chips than single-cut, resulting in a smoother surface finish with less chatter on ferrous metals.
- Premium tungsten carbide head — maintains cutting edge hardness at high temperatures, outlasting HSS burrs significantly on steel and stainless applications.
- High-quality alloy steel shank (HRC 45–49) — resists deflection and breakage under load, ensuring safe operation at full RPM in die grinders and rotary tools.
When to Use This Burr
Choose the SL-4DC (1/2″ head) for deburring internal angles, finishing tapered bores, blending weld joints in corners, and cleaning up castings with angled features. The included angle profile lets you work into tight V-channels and tapered openings that flat or ball-shaped burrs cannot reach. The 1/2″ size is suited for heavier stock removal and broader surface work. Use with a 1/4″ collet die grinder at up to 66,000 RPM.
Authorised Australian Dealer — This product is sourced directly from Alpha Australia and is backed by full Australian manufacturer warranty and local support.
Alpha Included Angle Carbide Burrs — SL Series Double Cut
| Part No. | Head Dia. (in) | Head Dia. (mm) | Flute Length | Overall Length | Shank |
|---|---|---|---|---|---|
| SL-1DC | 1/4″ | 6.35mm | 5/8″ | 2″ | 1/4″ |
| SL-2DC | 5/16″ | 7.94mm | 11/16″ | 2-1/4″ | 1/4″ |
| SL-3DC | 3/8″ | 9.53mm | 13/16″ | 2-1/2″ | 1/4″ |
| SL-4DC ★ | 1/2″ | 12.70mm | 1-1/16″ | 2-3/4″ | 1/4″ |
★ You are viewing the highlighted variant. Other sizes in this series are also available.
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