DEWALT Ceramic Abrasive Combo Wheel DW8905COMBOH 4-1/2 Inch Disc (3/32 Thickness 5/8-11 Threaded Hub Cut Notch Steel Stainless Metal Grinding Tool)

DEWALT DW8905COMBOH XP™ 4-1/2" x 3/32" 5/8"-11 Ceramic 3-in-1 Combo Wheel

The DEWALT DW8905COMBOH XP™ 4-1/2-inch ceramic combo abrasive wheel executes precision cutting, light edge grinding, weld beveling, and root-pass notching across carbon steel, high-strength alloy, and stainless steel fabrications without frequent wheel changeovers. Engineered with a multi-purpose 3/32-inch thickness, a 5/8"-11 quick-spin threaded hub, and a high-tensile fiberglass reinforcement grid, this 3-in-1 abrasive disc provides the lateral rigidity required for horizontal grinding while maintaining narrow vertical slicing efficiency on standard angle grinders. Formulated with high-grade microcrystalline ceramic grain that delivers up to 56 percent longer life and cool-cutting action to eliminate thermal blueing and workpiece distortion on heat-sensitive alloys, it equips pipe welders, structural metal fabricators, and mechanical contractors with fast stock removal and burr-free edge preparation.

Best Used For:

• Pipe Root-Pass Notching and Preparation: Slicing, beveling, and notching pipe joints, schedule 40 pipelines, and pressure vessel weld preps with consistent wheel tracking.
• Stainless Steel and Alloy Fabrication: Cutting and smoothing food-grade stainless tubing, angle iron, and sheet metal assemblies without heat discoloration or warping.
• Structural Steel Slicing and Weld Dressing: Trimming structural beam flanges, beveling plate edges, and grinding flush fillet welds with a single multi-functional tool.

Key Performance & Safety Features

• 3-in-1 Multi-Function Utility: Reinforced internal matrix allows operators to transition seamlessly between vertical cutting, root-pass notching, and light face grinding.
• High-Grade Microcrystalline Ceramic Grain: Self-sharpening abrasive fracture points deliver up to 56 percent longer service life and aggressive stock removal rates.
• Cool-Cutting Thermal Barrier Formulation: Minimizes frictional surface heat to prevent thermal bluing, carbide precipitation, and metal warping on stainless steel.
• Reinforced High-Tensile Fiberglass Layers: Multi-layer fiberglass mesh construction ensures maximum structural integrity and operator safety under side-load grinding forces.
• Integrated 5/8"-11 Threaded Hub: Provides rapid, tool-free spin-on wheel mounting directly to 4-1/2-inch angle grinder spindles without loose flanges.
• ISO 9001 Certified Quality Manufacturing: Produced under strict industrial standards to ensure uniform grain density, wheel balance, and vibration-free rotation.

What's Included

• (1) DEWALT DW8905COMBOH XP™ 4-1/2" x 3/32" x 5/8"-11 Ceramic 3-in-1 Combo Wheel

Technical Specifications

Pro-Tip: When shifting from straight cutting to light weld blending, maintain a 30-degree work angle against the steel bead rather than grinding completely flat; this orientation utilizes the reinforced 3/32-inch shoulder to maximize ceramic grain fracture and prevent premature edge rounding.