Alpha
Alpha SF-5DC Tree Radius Carbide Burr — 1/2″ Double Cut
Part No: SF-5DC | Barcode: 9342386017106 | Shape: SF — Tree (Radius End)
The Alpha SF-5DC is a 1/2″ (12.70mm) tree (radius end) double cut carbide burr with a 1″ 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.
1/2″ Head Dia.
Double Cut
1/4″ Shank
1″ 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.
- Tree shape with radius end — tapered body reaches into cavities while the rounded tip prevents scoring at the base of the cut.
- 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 SF-5DC (1/2″ head) for die work, mould cavities, and tapered openings where a rounded bottom is required. The tree profile with radius tip provides smooth, blended transitions at the base of tapered cuts. The 1/2″ size is suited for heavier stock removal and broader surface work. 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 Tree Radius Carbide Burrs — SF Series Double Cut
| Part No. | Head Dia. (in) | Head Dia. (mm) | Flute Length | Overall Length | Shank |
|---|---|---|---|---|---|
| SF-1DC | 1/4″ | 6.35mm | 5/8″ | 2″ | 1/4″ |
| SF-3DC | 3/8″ | 9.53mm | 3/4″ | 2-1/2″ | 1/4″ |
| SF-4DC | 7/16″ | 11.11mm | 1″ | 2-3/4″ | 1/4″ |
| SF-5DC ★ | 1/2″ | 12.70mm | 1″ | 2-3/4″ | 1/4″ |
★ You are viewing the highlighted variant. Other sizes in this series are also available.
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