🔧 PRETEC 48PCS Flap Discs 40 Grit — Built for Heavy-Duty Grinding & Surface Prep

This 48-piece bulk pack is designed for professionals who need a reliable, long-lasting grinding solution for continuous metalworking and surface preparation tasks. Ideal for fabrication shops, welding stations, auto body repair, and industrial maintenance.

If you grind, sand, and remove material every day — this is the pack built for your workflow.

【Designed for 4-1/2" Angle Grinders】

Engineered for all standard 4-1/2 inch angle grinders with 7/8" arbor, these flap discs deliver stable, vibration-controlled grinding at high speed.

Type 27 design allows both flat and angled grinding for maximum versatility.

【Zirconia Abrasive for Extended Disc Life】

Made with high-density zirconia abrasive grain, offering:

• Faster material removal

• Longer working life than standard aluminum oxide

• Consistent cutting performance

• Excellent heat resistance

Perfect for aggressive grinding applications.

【Optimized for Heavy Stock Removal】

The coarse 40 grit structure is ideal for:

• Weld seam grinding

• Removing rust and scale

• Deburring sharp edges

• Shaping metal surfaces

• Surface preparation before painting or coating

【Reinforced Fiberglass Backing】

Each disc features a reinforced fiberglass backing plate that:

• Absorbs vibration

• Improves stability

• Reduces operator fatigue

• Enhances grinding control

Providing smoother and safer operation.

【Built for Angled Grinding】

The Type 27 angled profile is optimized for:

• Edge grinding

• Corner work

• Weld blending

• Beveled surface sanding (5°–15° working angle)

Allowing better access and control on complex surfaces.