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PRETEC PROFESSIONAL ABRASIVES 4-1/2" 40 Grit Zirconia Flap Discs 80 High-Density Flaps • Type 27 • 7/8" Arbor
Built for aggressive stock removal, weld cleanup, rust removal, deburring, edge work and metal surface preparation with 4-1/2" angle grinders.
Select Your Pack Before Checkout Every pack includes 4-1/2" 40 grit zirconia flap discs and 1 pair of green PRETEC work gloves. Why Choose PRETEC? 80 High-Density Flaps Dense, overlapping 1" abrasive flaps provide broad abrasive coverage and consistent support during demanding grinding work. Premium Zirconia Alumina Durable zirconia abrasive is suited to high-pressure metal grinding, weld blending, deburring and surface preparation. Aggressive 40 Grit Cut Coarse 40 grit delivers strong cutting action for rapid stock removal, rust removal and smoothing rough metal surfaces. Reinforced Fiberglass Backing The fiberglass backing plate provides stable support and helps reduce vibration for controlled handling. Pack Options Variation You Will Receive 12 Pack (10 + 2 Bonus) 12 × 40 Grit Zirconia Flap Discs + 1 Pair of Green PRETEC Work Gloves 40 Pack 40 × 40 Grit Zirconia Flap Discs + 1 Pair of Green PRETEC Work Gloves Type 27 Flat Profile for Controlled Grinding
The Type 27 flat profile is designed for controlled contact on flat surfaces, outside edges and weld seams. For best results, use the disc at a shallow working angle of approximately 5° to 15°. It combines grinding and blending in one step, helping reduce unnecessary wheel changes during metalworking projects.
Fits Compatible 4-1/2" Angle Grinders
Each disc measures 4-1/2" (115 mm) in diameter and has a 7/8" (22.23 mm) unthreaded arbor hole. Before ordering, confirm that your angle grinder, guard and flange system accept 4-1/2" discs with a 7/8" arbor.
Recommended Applications
- Heavy stock removal
- Weld seam grinding and weld blending
- Rust and paint removal
- Deburring sharp or rough metal edges
- Edge chamfering and shaping
- Metal surface preparation before coating or finishing
- Steel, stainless steel, carbon steel, sheet metal and alloy steel work
Product Specifications BrandPRETEC Product TypeZirconia Flap Disc / Flap Sanding Disc Disc Diameter4-1/2" / 115 mm Arbor Hole7/8" / 22.23 mm Grit40 Grit / Coarse Disc ProfileType 27 / T27 Flat Abrasive MaterialZirconia Alumina Flap Construction80 High-Density Overlapping Flaps, Approximately 1" Long Backing PlateReinforced Fiberglass Maximum Speed13,300 RPM Compatible ToolCompatible 4-1/2" Angle Grinders Accepting 7/8" Arbor Discs Package Includes
- Selected quantity of PRETEC 4-1/2" 40 Grit Zirconia Flap Discs
- 1 Pair of Green PRETEC Work Gloves
Safety Reminder Inspect each flap disc before use. Install the grinder guard and confirm the direction, disc size and arbor fit before operation. Never exceed 13,300 RPM. Wear task-appropriate eye, face, hearing, respiratory and hand protection. Flap discs are designed for grinding and sanding only—do not use them as cut-off wheels. PRETEC 40 GRIT ZIRCONIA FLAP DISCS High-Density Construction • Aggressive Grinding • Work Gloves Included
