UCT Gem Carbide Rotary Burr SG-5 1/2 Inch (1/4 Inch Shank Solid Tungsten Carbide Pointed Tree Shape Double Cut 20000 Max RPM Weld Grinding)
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UCT Gem Carbide SG-5 1/2-Inch Pointed Tree Solid Carbide Rotary Burr
The UCT Gem Carbide SG-5 1/2-Inch Pointed Tree Solid Carbide Rotary Burr is a specialized rotary grinding and deburring bit engineered for cleaning out acute-angled corners, grinding narrow V-cuts, blending internal welded seams, and deburring complex metal geometries without binding in tight spaces. Rated for operational speeds up to 20,000 RPM on a standard 1/4-inch shank, this solid tungsten carbide bit features a pointed tree flame-like 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 2-1/2-inch overall length, this 0.25-pound rotary tool accessory executes precision metal removal.
Best Used For:
- Acute-Angle & V-Groove Joint Grinding: Accessing narrow angled weld preparations and sharp interior corners to remove heavy bead material.
- Complex Mold & Die Cavity Deburring: Removing sharp flash lines and burs from narrow recessed cavities in steel castings and machined parts.
- Engine Cylinder Head & Porting Modifications: Shaping and smoothing narrow internal runner transitions and curved port walls in automotive cylinder heads.
Key Performance & Safety Features
- Solid Tungsten Carbide Construction: Single-piece carbide formulation brazed to a hardened steel shank maintains cutting edge hardness under intense frictional heat.
- Pointed Tree (SG-5) Flame-Like Profile: Tapered tree geometry provides maximum clearance in narrow V-cuts, acute angles, and sharp fillets.
- 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 shank inserts 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 SG-5 1/2-Inch Double Cut Pointed Tree Solid Carbide Burr
Technical Specifications
| Brand / Manufacturer | UCT / Gem Carbide |
| Model / Part Number | SG-5 (SG5) |
| Head Material Composition | Tungsten Carbide |
| Shank Material Composition | Hardened Steel Shank |
| Cutting Flute Architecture | Double Cut (Cross-Cut Flutes) |
| Head Profile Shape | Pointed Tree / Flame Shape |
| 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 | 2-1/2 in. (2.50 in. / 63.5 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 tip lightly when working in narrow V-grooves; maintaining high die grinder speeds near 20,000 RPM without pushing hard prevents tip chipping and delivers smooth material removal in tight angles.