PSG Star Flex T29 125-22 karkeus 80 INOX lamellilaikka TLI1252280

In stainless steel fabrication shops, welders reach for the PSG Star Flex T29 flap disc when they need to blend a weld seam to a satin finish without gouging the parent metal. Its conical shape and zirconia alumina grit make fast work of grinding, deburring, and finishing on INOX, steel, and non-ferrous alloys.

Key specifications

• Type 29 conical flap disc, 125 mm diameter, 22 mm bore
• Grit P80 zirconia alumina abrasive on fiberglass backing
• Maximum speed 12,200 RPM, 80 m/s peripheral speed
• Resin bonding, EN 13743 compliant, for angle grinders
• Dry grinding only; high durability and heat resistance

Why choose it

The Star Flex T29 delivers a consistent, medium-high aggression cut with excellent edge retention on stainless steel. Its angled flaps provide a larger contact area than flat discs, reducing operator fatigue and producing a uniform finish. The fiberglass backing plate adds stability and safety at high RPM, while the zirconia alumina grain stays sharp longer than standard aluminum oxide, lowering cost per part.

Ideal use cases

• Weld seam blending and dressing on stainless steel fabrications
• Removing mill scale, rust, and light burrs from INOX surfaces
• Edge chamfering and deburring on sheet metal and tubing
• Surface preparation before painting or passivation
• Finishing handrails, kitchen equipment, and architectural metalwork

Good to know

Mount the disc on a 125 mm angle grinder with a 22 mm arbor and always observe the maximum RPM rating. For best results on stainless steel, use light to moderate pressure and keep the disc moving to avoid heat buildup.