2.5-Inch (65mm) Knotted Cup Brush

Brief Overview

This 2.5-inch knotted cup brush delivers aggressive material removal for rust stripping, paint removal, and weld spatter cleaning on angle grinders and similar rotary tools. The densely packed knotted steel wire design creates maximum contact pressure for demanding surface preparation tasks. If your operation requires softer material contact, consider pairing this with a 75mm crimped alternative or exploring larger format options for faster coverage.

Key Features

• Knotted Steel Wire Construction: Tightly twisted and knotted wire tufts provide aggressive cutting action for heavy-duty rust and scale removal
• 2.5-Inch (65mm) Cup Diameter: Optimal size for handheld angle grinder use with balanced cutting force and control
• Standard Hex Mount: Threaded arbor connection fits M14 and standard 5/8"-11 angle grinder spindles for secure, tool-free installation
• Dense Wire Arrangement: Circumferential wire skirt maximizes surface contact and material removal rate
• Industrial-Grade Steel: Hardened wire construction resists deformation under extended high-speed operation

Why Resellers Specify This Brush

Stock & Turnover: The 2.5-inch size is the most frequently requested cup brush dimension in metal fabrication, automotive restoration, and industrial maintenance. This density of demand ensures predictable inventory velocity.

Margin Opportunity: Knotted designs command higher unit pricing than crimped alternatives, reflecting their aggressive cutting performance and shorter service life (more repeat purchases per year).

Application Breadth: Suitable for structural steel prep, foundry cleaning, pipeline maintenance, and heritage restoration—multiple vertical markets from a single SKU.

Operator Preference: Experienced technicians prefer knotted wire for speed; this builds customer loyalty when you stock the preferred specification.

Technical Specifications

Specification	Value
Cup Diameter	2.5 inches (65mm)
Wire Type	Knotted Steel
Mount Type	Hex Threaded Arbor (M14/5/8"-11)
Max Operating Speed	Standard angle grinder RPM (typically 6,000–11,000 depending on tool)
Wire Material	Carbon Steel, Hardened
Weight	Approximately 0.3 kg

Reseller Value Statement

Stock this size in quantity. The 2.5-inch knotted cup brush is the workhorse of surface preparation. Pair it with larger knotted wheel formats for shops that blend flat and beveled work, and maintain shaft-mounted variants for bench-mounted applications. Your margin is strong, your turnover is predictable, and your customers will expect you to have stock on hand.