Introducing the Jaz Cup Brush High Speed Twist Knot, a purpose-built accessory for aggressive metal prep where speed and precision matter. Designed to work with low-weight, high-speed mini-grinders, this cup brush delivers rapid material removal at up to 15,000 RPM, helping you blast through rust, scale, and burrs without fatigue.

Engineered for efficiency, the twist knot stainless steel wires maintain a robust cutting action even during extended sessions. The brush’s compact 65mm diameter with a 20mm height and 0.5mm wire thickness creates a balanced, approachable tool that can reach tight corners and curved surfaces while maintaining consistent contact with the workpiece.

Key specifications

• Jaz Code: HST0065QM14
• Diameter x Height: 65mm x 20mm
• Wire material: Stainless Steel
• Wire thickness: 0.5mm
• Mounting: M14 x 2
• Maximum RPM: 15,000
• Type: Cup Brush with Twist Knot
• Compatibility: Ideal for mini-grinders and common angle grinders
• Product line: BRUH-6514S family

Why this brush stands out

• Optimized for speed and control: A low-weight design paired with high-speed capability minimizes operator fatigue while delivering aggressive cutting power.
• Twist Knot geometry: The twisted wire configuration provides continuous contact with uneven surfaces, making it easier to access edges, weld seams, and curved profiles without gouging.
• Stainless steel resilience: Wire stands up to repeated use, maintaining shape and performance for rust removal, scale elimination, and deburring tasks.
• Versatile surface prep: Perfect for steel, stainless steel, and other alloys, helping you prep for coatings, weld finishing, or paint removal with predictable results.

Best-use scenarios

• Rapid rust and coating removal from flat panels, frames, and forged components
• Weld blending and edge deburring after fabrication to create clean, ready-to-coat surfaces
• Scale removal on castings and treated metals, including hard-to-reach corners
• Pre-coating surface prep to improve adhesion and longevity of primers and topcoats

Practical tips for top performance

• Operate near the upper end of the RPM range for quick results, but monitor heat to prevent overheating of the workpiece
• Apply steady, controlled pressure—let the twist knots do the work rather than forcing the tool
• Inspect the brush regularly for worn or bent wires; replace promptly to maintain consistent performance
• Wear appropriate PPE: safety glasses, gloves, and a dust mask or respirator as needed for debris and dust

With the Jaz Cup Brush High Speed Twist Knot, you gain a reliable, efficient ally for metal preparation tasks. Its precise balance of speed, reach, and cutting power helps you achieve clean, durable results on a range of metals, making it a smart addition to any fabrication, automotive, or DIY workshop.