4-1/2" x 7/8" Ceramic Flap Disc - T29 - 10 Pack

Product Description

BHA 4.5" x 7/8" Ceramic Flap Disc - Type 29 Conical - 10 Pack

Specifications

Made for welders and metal fabricators, the BHA (Black Hawk Abrasives) 4.5" ceramic flap disc is recommended for grinding and blending stainless steel, including edge work and weld removal. Its standard-density Type 29 (T29) conical design has a 7/8" arbor hole and fits compatible 4-1/2" angle grinders.

Choose from 36, 40, 60, or 80 grit. Each pack includes 10 discs in your chosen grit.

Ceramic Grinding & Blending for Stainless Steel, Edges & Welds

• Built for Stainless (INOX): Cuts aggressively for tough grinding jobs while keeping heat buildup down to minimize the risk of thermal damage and surface discoloration.
• Edge and Weld Work: Designed for grinding edges and thick welds, where pressure is concentrated in a small area.

Product Features

• Self-sharpening ceramic grain: under grinding pressure, the grain micro-fractures to expose fresh cutting edges.
• T29 conical face: the angled face is designed for heavy stock removal, edge grinding, and contour work.
• X-weight cloth flaps: polyester backing in 36 and 40 grit; polycotton in 60 and 80 grit. Reinforced fiberglass backing plate across all grits.
• Closed coat: nearly complete grain coverage gives each flap more cutting points for aggressive grinding and consistent material removal.
• Bond and grinding aid: a resin-over-resin bond with a topsize layer and a grinding aid that lowers friction and heat while grinding.
• Contaminant-free: rated under 0.1% combined iron, sulfur, and chlorine (Fe+S+Cl), as marked on the label.

Grinder Fit and Maximum Speed

This disc fits compatible 4-1/2" angle grinder models from popular brands such as DeWalt®, Makita®, Milwaukee®, Metabo®, and Bosch®. Confirm that your grinder accepts a Type 29 flap disc with a 7/8" arbor hole.

Maximum disc speed: 13,300 RPM. Do not use on grinders rated above that speed.

Choosing a Grit

Common Metals This Ceramic Flap Disc Grinds

These are the most common uses. For aluminum and other soft non-ferrous metals, use our Calcium Coated Flap Disc for Aluminum.

Common Applications

• Weld Removal: Grinding down and leveling welds
• Deburring: Removing burrs left after cutting
• Chamfering: Beveling edges
• Edge Grinding: Edge work on stainless steel and steel studs

Use and Safety

Hold the flap disc at 15 to 25 degrees to the work surface and apply moderate, consistent pressure. Do not force or jam the disc.

Before use:

• Check that your grinder's rated speed does not exceed the disc's 13,300 RPM maximum.
• Inspect the disc for cracks, loose or broken flaps, or other damage. Do not use a disc that is damaged or has been dropped.
• Confirm the disc suits your workpiece. For aluminum and soft non-ferrous metals, use a calcium-coated flap disc.
• Mount the disc with the guard in place, following your grinder's instructions.
• Wear eye, hearing, and respiratory protection, plus gloves.

During use:

• Keep the guard in place the whole time.
• This is a grinding disc. Never use it for cut-off work.

Storage: Store discs flat in a dry place, away from direct sunlight and temperature extremes. Don't bend them or stack heavy items on top.

WARNING: Improper use may cause serious injury. Inspect wheel for damage before use. Always use a guard, personal protection equipment, and proper mounting procedures. Use as directed in ANSI safety code B7.1 and OSHA. DO NOT OVERSPEED.