UCT Gem Carbide Rotary Burr SF-5 1/2 Inch (1/4 Inch Shank Tungsten Carbide Pointed Tree Shape Double Cut 20000 Max RPM Weld Grinding V Cuts)
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UCT Gem Carbide SF-5 1/2-Inch Pointed Tree Carbide Rotary Burr
The UCT Gem Carbide SF-5 1/2-Inch Pointed Tree Carbide Rotary Burr is a specialized rotary grinding and deburring bit engineered for navigating acute angles, grinding narrow V-grooves, blending internal weld seams, and shaping tight corner contours without digging into target workpieces. Rated for operational speeds up to 20,000 RPM on a standard 1/4-inch steel shank, this tungsten carbide head bit features a pointed tree profile and double-cut cross-flute geometry that breaks material into fine chips to eliminate chatter. Outfitted with a 1/2-inch head diameter and a 1-inch length of cut across a 3-inch overall length, this 0.25-pound rotary tool accessory executes high-volume metal removal.
Best Used For:
- Acute-Angle & V-Groove Joint Grinding: Reaching deep into narrow angled weld preparations and tight interior pointed corners to remove heavy bead material.
- Internal Contouring & Recessed Deburring: Shaving sharp flash lines and burs from narrow cavities and channels in steel castings and machined components.
- Engine Cylinder Head & Manifold Porting: Shaping and smoothing narrow internal runner transitions and curved port walls in automotive cylinder heads.
Key Performance & Safety Features
- Tungsten Carbide Cutting Head: High-density carbide composition brazed to a hardened steel shank maintains cutting edge hardness under intense heat.
- Pointed Tree (SF-5) Head Profile: Tapered tree geometry provides maximum clearance in narrow V-cuts, acute angles, and sharp fillets without gouging.
- Double-Cut Cross-Flute Design: Opposing cutting flutes produce granular metal chips to minimize tool chatter and deliver smooth surface finishes.
- 20,000 Maximum RPM Speed Rating: Precision-balanced construction accommodates pneumatic and electric 1/4-inch die grinders at full operating speed.
- Standard 1/4-Inch Steel Shank: Precision-ground steel shank mounts securely into standard 1/4-inch collets to eliminate rotational runout.
- Multi-Metal Substrate Compatibility: Cuts efficiently through structural steel, cast iron, stainless steel, brass, bronze, and aluminum.
What's Included
- (1) UCT Gem Carbide SF-5 1/2-Inch Double Cut Pointed Tree Carbide Rotary Burr
Technical Specifications
| Brand / Manufacturer | UCT / Gem Carbide |
| Model / Part Number | SF-5 (SF5) |
| Head Material Composition | Tungsten Carbide |
| Shank Material Composition | Hardened Steel Shank |
| Cutting Flute Architecture | Double Cut (Cross-Cut Flutes) |
| Head Profile Shape | Tree Shape - Pointed End |
| Cutting Head Diameter | 1/2 in. (0.500 in. / 12.7 mm) |
| Head Length of Cut (Flute Length) | 1.0 in. (1.000 in. / 25.4 mm) |
| Shank Diameter Size | 1/4 in. (0.250 in. / 6.35 mm) |
| Overall Length Dimension | 3.0 in. (3.000 in. / 76.2 mm) |
| Maximum Rotational Speed | 20,000 RPM Maximum Operating Velocity |
| Substrate Application Compatibility | Steel, Cast Iron, Stainless Steel, Brass, Non-Ferrous Metals |
| Assembled Net Weight | 0.25 lb (0.113 kg) |
Pro-Tip: Guide the pointed tree head smoothly through narrow V-grooves without jamming; maintaining steady die grinder speeds near 20,000 RPM with light pressure prevents tip chipping and ensures even stock removal.