Alpha
Alpha SC-1DC Ball Nose Carbide Burr — 1/4″ Double Cut
Part No: SC-1DC | Barcode: 9342386016840 | Shape: SC — Cylindrical Ball End (Ball Nose)
The Alpha SC-1DC is a 1/4″ (6.35mm) ball nose (cylindrical ball end) double cut carbide burr with a 5/8″ flute length and 1/4″ shank. CNC precision-ground from premium tungsten carbide for chatter-free material removal on steel, stainless steel, cast iron, and non-ferrous metals.
1/4″ Head Dia.
Double Cut
1/4″ Shank
5/8″ Flute Length
Tungsten Carbide
66,000 RPM Max
Suitable For
Mild Steel
Stainless Steel
Cast Iron
Tool Steel
Non-Ferrous Metals
Hard Facing Alloys
Key Features & Benefits
- CNC precision-ground flutes — delivers consistent cutting performance with reduced vibration and longer tool life across repeated use.
- Double Cut flute pattern — double-cut cross-flute pattern that produces finer chips than single-cut, resulting in a smoother surface finish with less chatter on ferrous metals.
- Ball nose radius tip — produces smooth concave surfaces and rounded internal corners without sharp edge marks.
- Premium tungsten carbide head — maintains cutting edge hardness at high temperatures, outlasting HSS burrs significantly.
- 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 SC-1DC (1/4″ head) for concave surfaces, fillet radii, rounded channels, and contour blending. The radius tip produces smooth transitions and prevents sharp inside corners. The 1/4″ size is suited for fine detail work and tight clearances. Use with a 1/4″ collet die grinder at speeds up to 66,000 RPM — reduce speed for larger diameters and harder materials for best results.
Authorised Australian Dealer — This product is sourced directly from Alpha Australia and is backed by full Australian manufacturer warranty and local support.
Alpha Ball Nose Carbide Burrs — SC Series Double Cut
| Part No. | Head Dia. (in) | Head Dia. (mm) | Flute Length | Overall Length | Shank |
|---|---|---|---|---|---|
| SC-1DC ★ | 1/4″ | 6.35mm | 5/8″ | 2″ | 1/4″ |
| SC-2DC | 5/16″ | 7.94mm | 11/16″ | 2-1/4″ | 1/4″ |
| SC-3DC | 3/8″ | 9.53mm | 3/4″ | 2-1/2″ | 1/4″ |
| SC-5DC | 1/2″ | 12.70mm | 1″ | 2-3/4″ | 1/4″ |
| SC-6DC | 5/8″ | 15.88mm | 1″ | 2-3/4″ | 1/4″ |
| SC-7DC | 3/4″ | 19.05mm | 1″ | 2-3/4″ | 1/4″ |
★ You are viewing the highlighted variant. Other sizes in this series are also available.
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