Description

PFERD 43305051 Cup Brush – Twist Knot CombiTwist – Steel Wire – 65mm M14 Thread

The PFERD 43305051 CombiTwist Cup Brush 65mm (43305051) is a very aggressive, high-performance brush designed for heavy-duty brushing applications such as deburring, derusting, descaling, and weld cleaning. Featuring stiff 0.50mm steel wire knots and an M14 x 2mm thread, this brush is ideal for use on powerful angle grinders and is especially effective on large surfaces.

The CombiTwist design offers a significant advantage over standard twist knot brushes: it ensures smoother operation, greater comfort, and extended tool life by reducing wire recoil and preventing knot unraveling—making it suitable for edge and corner work. Made from PFERD’s special high-tensile steel wire, it offers outstanding durability, even under the toughest operating conditions.

Key Features:

✔ CombiTwist design – reduces vibration and knot recoil, extends tool life
✔ Twist knot steel wire (0.50mm) – very aggressive brushing action
✔ 65mm brush diameter – compact and powerful for flat surfaces
✔ Thread: M14 x 2 – fits standard angle grinders
✔ Filament length: 22mm
✔ Max RPM: 12,500 | Optimum RPM: 6,300–12,500
✔ PFERD special wire – high tensile and bending fatigue strength
✔ Withstands temperatures up to 300°C

Specifications:

• Brush Diameter: 65mm

• Filament Diameter: 0.50mm

• Filament Length: 22mm

• Filament Material: Steel Wire (ST)

• Thread Type: M14 x 2

• Number of Knots: 18

• Mounting System: Thread

• Max RPM: 12,500

• Optimum RPM: 6,300–12,500

• Model Number: 43305051

• Barcode: 4007220806708

• Packaging Unit: 1 piece

Applications:

✔ Heavy-duty cleaning
✔ Rust and oxide removal
✔ Paint stripping
✔ Deburring and descaling
✔ Root seam and weld cleaning
✔ Work on corners and edges

Materials That Can Be Worked:

• Steel and cast steel

• Cast iron

• Steels up to 1,200 N/mm²

• Hardened steels > 54 HRC

Drive Types:

• Angle grinder

• Drive spindle

Usage Notes & Safety:

• Operate within recommended RPM range

• Use on high-performance grinders for best results

• Secure thread properly before operation

Ergonomics & Value:

🔹 PFERD ERGONOMICS: The CombiTwist design reduces hand-arm vibration and increases operator comfort
🔹 PFERD VALUE: Maximum economic efficiency due to extended service life and aggressive performance