Klingspor SMT 674 Ceramic Flap Disc 125 x 22.23 mm Grit 40 Conical, 10-Pack 369259

On a busy metal fabrication floor, an angle grinder fitted with a Klingspor SMT 674 ceramic flap disc chews through a stainless steel weld bead, leaving a smooth, even finish without gouging. The conical shape (Type 29) angles the abrasive flaps for aggressive grinding on flat surfaces, while the full synthetic resin bonding and fiberglass backing plate ensure the disc holds up under high pressure. With a diameter of 125 mm and a 22.23 mm bore, this disc mounts directly onto standard angle grinders, and the P40 grit delivers rapid stock removal on steel and stainless steel. Each pack contains 10 discs, keeping your workstation stocked for heavy-duty tasks.

Key specifications

• Disc diameter: 125 mm
• Bore diameter: 22.23 mm
• Grit size: P40
• Abrasive grain: Ceramic
• Disc shape: Conical (Type 29)
• Backing plate material: Fiberglass
• Bonding agent: Full synthetic resin
• Max. permissible RPM: 12,200
• Recommended materials: Steel, stainless steel (Inox)
• Tool compatibility: Angle grinder
• Quantity per pack: 10 pieces
• Safety standard: EN 13743

Why choose it

Ceramic abrasive grain fractures at a controlled rate, constantly exposing fresh cutting edges for a high material removal rate and long lifespan. The SMT 674 series is engineered for professionals who demand consistent performance and reduced downtime. The conical design concentrates grinding pressure on the outer edge, making it ideal for beveling, weld blending, and surface preparation.

Ideal use cases

• Removing weld seams and spatter on stainless steel fabrications
• Beveling and chamfering steel plates before welding
• Surface conditioning and rust removal on carbon steel
• Deburring and edge breaking on machined parts
• Preparing surfaces for painting or coating

Good to know

Always wear appropriate personal protective equipment, including eye and hearing protection, when using flap discs. Verify that your angle grinder's maximum RPM does not exceed the disc's rating of 12,200 RPM. Store discs in a dry, cool place away from direct sunlight to preserve the resin bond. The EN 13743 certification ensures compliance with European safety standards for bonded abrasives.