4 Inch Abrasive Flap Disc

This BFA 4 4inch abrasive flap disc is an economic and reliable grinding solution, suitable for carbon steel, mild steel and several kinds of standard metal fabrication process. Manufactured with top quality of brown fused alumina abrasive grains, this 4inch abrasive flap disc has fast initial cutting performance, and keep very stable grinding capability during its whole life span.

Based on T27 flat type of this 4inch abrasive flap disc, it can touch full surface throughout the whole polishing process, which is perfect for flat surface leveling, welding removal, deburring, and general-purpose metal fabrication. It's fiberglass backing and offer good safety condition for the workers, and at the same time, it offers vibration reduction, and heat resistance under the continuous usage.

Compared with zirconia or ceramic flap discs, this 4inch abrasive flap disc with fused alumina has lower cost advantages, affordable choice and solid grinding efficiency and durability. Its widely used for workshop, hardware manufacturing, metal fabricators, and users who requiring a budget-friendly 4inch abrasive flap disc for daily production tasks.

This disc works efficiently on angle grinders and offers smooth grinding with minimum burning or loading. It is available in multiple grits from coarse removal (#40) to fine finishing (#120), supporting a wide range of applications from heavy stock removal to surface preparation before painting or welding.

Designed for long-lasting performance and reliable cutting power, this T27 brown fused alumina 4inch abrasive flap disc is an excellent all-purpose option for carbon steel grinding needs.

• Steel fabrication workshops: Used for leveling carbon steel surfaces, edge trimming, and removing weld spatter.
• General manufacturing plants: Suitable for equipment maintenance, part finishing, and weld bead treatment.
• Hardware and metalworking shops: Ideal for daily grinding of steel sheet metal, angle iron, and flat bar.
• Engineering Construction teams: Used for quick on-site repair and adjustment of outdoor metal structures.
• Before and after weld processing: remove metal surface oxide , burrs, weld spots, and dirts around weld joint.
• Surface preparation before painting: increase carbon steel surface roughness and improves paint adhesion.
• Machine maintenance departments: For daily repair work, steel component refurbishing, and equipment servicing.

• Made with high-quality brown fused alumina abrasive
• Economical option with stable grinding performance
• T27 flat shape for full-surface contact
• Fiberglass backing for safety and reduced vibration
• Suitable for carbon steel and general metalworking
• Available in a full grit range (#40–#120)
• Compatible with all angle grinders
• Ideal for workshop daily use