Sanding Discs - BA

EXTRACUT BA (Brown Aluminum Oxide) Sanding Discs the industry-standard workhorse abrasive discs for aggressive stock removal, heavy-duty grinding, and surface preparation on mild steel, cast iron, and wood. The tough, blocky brown fused alumina grains resist fracture and maintain cutting aggression under heavy pressure, making these discs the economical choice for high-volume material removal where finish quality is secondary to speed.

Key Features

• Brown Fused Alumina (BA) — Tough, durable brown aluminum oxide grains resist fracturing under heavy down-pressure, maintaining aggressive stock removal throughout disc life.
• Heavy-Duty Stock Removal — Optimized for maximum material removal rate on mild steel, cast iron, and softwoods — the go-to choice for rough shaping and surface leveling.
• Economical Performance — Lowest cost-per-removed-volume among all aluminum oxide types — ideal for high-production environments.
• Long Life Under Pressure — Tough grain structure withstands heavy feed pressures that would fracture more friable abrasives prematurely.
• Wide Format Availability — Available in all standard diameters (4"–7"), grits (36–320), and attachment types (PSA/Hook-and-Loop).
• Coarse-to-Medium Focus — Best performance in 36–120 grit range; finer grits available but WA/Zirconia may offer better value above 150 grit.

Applications

Heavy metal fabrication (weld removal, plate leveling, rust stripping), foundry and casting cleanup (burr removal, flash trimming), woodworking (rough dimensioning, surface leveling), construction (concrete/stone light grinding prep), shipyard maintenance (hull surface prep), and any application prioritizing fast material removal over fine finish quality.

Specifications