UCT Gem Carbide Rotary Burr SA-3 3/8 Inch (1/4 Inch Shank Solid Tungsten Carbide Cylindrical Double Cut 25000 Max RPM Weld Grinding Steel Porting)

UCT Gem Carbide SA-3 3/8-Inch Cylindrical Solid Carbide Rotary Burr

The UCT Gem Carbide SA-3 3/8-Inch Cylindrical Solid Carbide Rotary Burr is a rotary grinding and deburring bit engineered for removing weld beads, porting intake manifolds, dressing square corners, and chamfering steel fabrications. Rated for operational speeds up to 25,000 RPM on a standard 1/4-inch shank, this solid tungsten carbide bit features a double-cut cross-flute geometry that breaks material into fine chips to reduce chatter. Outfitted with a 3/8-inch head diameter and a 3/4-inch length of cut across a 2-1/2-inch overall length, this 0.15-pound rotary tool accessory executes high-speed metal removal.

Best Used For:

• Weld Seam Grinding & Bead Smoothing: Blending surface welds flush on carbon steel, stainless steel, and cast iron fabrications.
• Engine Cylinder Head & Intake Porting: Enlarging, shaping, and polishing internal intake and exhaust runner ports in automotive heads.
• Machined Edge Deburring & Corner Dressing: Removing sharp burrs from milled metal edges and squaring interior 90-degree corners.

Key Performance & Safety Features

• Solid Tungsten Carbide Construction: Single-piece carbide formulation resists high thermal deformation and edge wear during continuous grinding.
• Double-Cut Cross-Flute Geometry: Opposing cutting flutes produce granular metal chips to minimize tool chatter and deliver fine surface finishes.
• 25,000 Maximum RPM Speed Rating: Precision-balanced construction accommodates pneumatic and electric 1/4-inch die grinders at full operating speed.
• Cylindrical SA-3 Shape Profile: Straight cylindrical body without end cut facilitates flat surface grinding and shoulder squaring.
• 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, brass, bronze, and non-ferrous alloys.

What's Included

• (1) UCT Gem Carbide SA-3 3/8-Inch Double Cut Cylindrical Solid Carbide Burr

Technical Specifications

Pro-Tip: Maintain high die grinder rotational speed near 25,000 RPM while using light, continuous movement; allowing the carbide teeth to cut without heavy manual pressure prevents flute loading and extends edge sharpness on hard steel alloys.