Blue Spot Tools Zirconium Mixed Flap Disc 115mm 19689 40 60 80 Grit Sanding Grinding

Blue Spot Tools 115mm (4.5") Zirconium Oxide Flap Disc 6 Pack – Mixed Grits 40, 60, 80 – 19689 Bluespot

MPN: 19689

Barcode: 5028734196894

Size: 4.5 inch 115mm

Grits Included: 40 / 60 / 80

Grades: Coarse, Medium, Fine

Pack Size: 6 Discs (2 of each grit)

Product Overview:

Achieve professional results with the Blue Spot Tools Zirconium Oxide Mixed Grit Flap Disc Set, engineered for high-performance grinding and sanding. Designed to fit all standard 115mm (4½") angle grinders, this 6-piece mixed grit set includes coarse, medium, and fine flap discs to tackle everything from heavy metal removal to detailed surface finishing.

Each flap disc is built with industrial-grade zirconium abrasive, offering superior durability and heat resistance compared to standard aluminium oxide. The Type 29 conical design ensures greater surface contact, especially on edges and contours, while the depressed centre provides enhanced control and stability during use.

Perfect for working on alloy steel, stainless steel, mild steel, and low alloy metals, these flap discs offer a long lifespan, fast material removal, and a consistent surface finish. Whether you're grinding weld seams, removing rust, or prepping metal for paint, this set provides all the grit options you need in one convenient pack.

Key Features:

• Mixed Grit Pack: Contains 2 x 40 grit (coarse), 2 x 60 grit (medium), and 2 x 80 grit (fine)

• Zirconium Oxide Abrasive: High-performance grain for extended disc life and cooler cutting

• Type 29 Conical Shape: Ideal for contour, edge, and flat surface grinding

• Depressed Centre Design: Provides better balance and control during use

• Wide Application Range: Excellent for grinding, rust removal, weld blending, and metal prep

• Universal Fit: Suitable for all makes of 115mm angle grinders with a 22.2mm bore

Specification and Main Points:

• Disc Diameter: 115mm (4½ inch)

• Bore Size: 22.2mm

• Max Safe Speed: 13,280 RPM / 80m/s

• Disc Type: Flap Disc – Type 29

• Abrasive Type: Zirconium Oxide

• Grits Included: 40, 60, 80

• Pack Quantity: 6 discs (2 of each grit)

Understanding the Grit Grades:

• 40 Grit (Coarse): Heavy-duty removal of welds, paint, and rust

• 60 Grit (Medium): Ideal for general metal grinding and surface smoothing

• 80 Grit (Fine): For blending and refining surfaces prior to polishing or painting

Applications:

• Metal surface preparation and smoothing

• Rust, paint, and scale removal

• Weld bead grinding and shaping

• Suitable for fabrication shops, workshops, construction, and automotive use

• Use on alloy steel, stainless steel, mild steel, and low alloy metals

Health & Safety Advice:

• Always wear eye protection, gloves, hearing protection, and dust masks

• Ensure the grinder's RPM does not exceed the disc's maximum rating

• Inspect discs before use – never use damaged or cracked discs

• Store flap discs in a dry, cool place away from direct sunlight

Frequently Asked Questions:

• What makes zirconium better than aluminium oxide?
  Zirconium offers cooler cutting, longer life, and is more effective on tough metals like stainless steel.

• Can these discs be used on wood?
  While designed for metal, they can be used lightly on hardwoods for shaping or smoothing.

• Do I need a backing pad?
  No, these flap discs are direct-mounting and ready to use with most 115mm grinders.

• What is the advantage of Type 29 discs?
  Type 29 flap discs have a conical profile, making them ideal for edge grinding and curved surfaces.

• Is this suitable for stainless steel?
  Yes – the zirconium oxide abrasive performs excellently on stainless and alloy steels.

All Sanding Flap Discs