Klingspor SMT 624 Zirconia Alumina Flap Disc 150 mm, 22.23 mm Bore, Grit 60, Convex, 10-Pack 322779

With a maximum operating speed of 80 m/s and a high-performance zirconia alumina grain, the Klingspor SMT 624 flap disc delivers aggressive material removal and exceptional lifespan on steel, stainless steel, and non-ferrous metals. Its convex shape and 150 mm diameter make it ideal for grinding and finishing on angle grinders, while the 22.23 mm bore ensures a secure fit on standard spindles.

Overview

The Klingspor SMT 624 is a premium flap disc engineered for professional metalworking applications. Each disc features a fiberglass backing plate and polyester cloth flaps coated with zirconia alumina abrasive, bonded with synthetic resin for durability under high pressure and heat. The convex (gewölbt) profile allows for effective grinding on flat surfaces and contours, providing a consistent finish with reduced vibration. This pack includes 10 discs, each with a grit size of 60, suitable for medium to coarse grinding tasks.

What stands out

• Zirconia alumina abrasive grain for high stock removal and long life
• Convex shape for aggressive grinding and easy blending
• Fiberglass backing plate for stability and safety at high speeds
• Maximum operating speed of 80 m/s (10,200 RPM) for fast work
• Compliant with EN 13743 safety standard for abrasive products
• Versatile for use on steel, stainless steel, and non-ferrous metals

Technical details

• Brand: Klingspor
• Model: SMT 624
• MPN: 322779
• EAN: 4014855209484
• Disc diameter: 150 mm
• Bore diameter: 22.23 mm
• Grit size: 60
• Disc shape: Convex (gewölbt)
• Abrasive grain type: Zirconia alumina
• Backing plate material: Fiberglass
• Backing material: Polyester cloth
• Bonding agent: Synthetic resin
• Maximum operating speed: 80 m/s
• Maximum RPM: 10,200
• Recommended applications: Steel, stainless steel, non-ferrous metals
• Tool compatibility: Angle grinders
• Safety standard: EN 13743
• Quantity per pack: 10 pieces
• Colour: Blue

Our verdict

The Klingspor SMT 624 flap disc is a top-tier choice for professionals who demand high performance and reliability. Its zirconia alumina abrasive and robust construction ensure efficient material removal and a long service life, making it a cost-effective solution for heavy-duty grinding and finishing tasks.