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82749 - Pferd 5" Combitwist Knot Wire Wheel .020 Carbon Steel 5/8-11 Arbor

Packaging: 1 of each
$51.62/ea $32.26/1 of each only $32.26/eaSave 38%

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OVERVIEW

Aggressive Rust and Slag Removal Made Easy

Upgrade your surface preparation game with the Pferd 82749 5-inch Knot Wheel Combitwist. When you are dealing with stubborn rust, thick paint, or heavy weld slag, a standard wire brush often just won't cut it. You need a tool that bites into the surface and clears contaminants quickly and effectively. That is exactly what this heavy-duty knot wheel is designed to do. Built with robust .020-inch carbon steel wire, it acts like hundreds of tiny chisels chipping away at surface imperfections, leaving you with clean, bare metal ready for welding or painting. The 5/8-11 threaded hub means you can spin it onto your 4.5-inch or 5-inch angle grinder in seconds, getting you back to work without fumbling with adapters or nuts.

The Combitwist Advantage

What sets this wheel apart from the generic brushes you might find at a hardware store is Pferd's COMBITWIST® feature. If you have ever used a wire wheel that wobbles or vibrates excessively, you know how tiring it can be on your hands and arms. Combitwist solves this by alternating the direction of the wire knots. This balances the wheel dynamically, providing a much smoother run. Not only does this make the tool more comfortable to use for long periods, but it also prevents the knots from unraveling prematurely. This means the brush keeps its aggressive shape and cutting power for much longer, saving you money on replacements in the long run.

Perfect for the Welding Shop

This tool is a favorite among professional welders and fabricators. It is perfect for prepping bevels before laying a root pass, cleaning up slag between passes, or putting the finishing touches on a completed fabrication. The 5-inch size is large enough to cover ground quickly on I-beams and plates but compact enough to maneuver around fixtures and flanges. Because it uses carbon steel wire, it is the right tool for mild steel projects. Just remember: if you are working on stainless steel, you'll want to switch to a stainless brush to keep your welds pure.

Tips for Best Results

To get the most out of your Pferd knot wheel, let the speed of the grinder do the work. Pressing down too hard can bend the wires and cause them to break off. A lighter touch allows the wire tips to strike the surface effectively, cleaning faster and lasting longer. Always wear a full face shield and safety glasses when using wire wheels, as wires can occasionally detach during operation. With the Pferd 82749, you are investing in a professional-grade accessory that delivers safety, durability, and top-tier performance.

Additional Information
Brand:Pferd
Diameter:5"
Arbor In:5/8"
Wheel Style:Twist Knot
Used To Grind:Steel
Wire Material:Carbon Steel
Wire Diameter:0.020"
Thread Size:5/8-11
Product Type:Knot Wheel
Technology:COMBITWIST
Packaging Description:1 of each
Arbor (in):5/8"

INCLUDED

  • 1x Pferd 5" Knot Wheel Combitwist (.020 Carbon Steel Wire)

APPLICATIONS

  • Removing heavy rust, scale, and corrosion from steel surfaces
  • Cleaning weld seams and removing slag between passes
  • Deburring cut edges on structural steel
  • Surface preparation prior to painting or coating
  • Cleaning pipeline joints and bevels
  • Removing rubber, plastic, or paint residues from metal

FAQ

This wheel features a standard 5/8-11 UNC threaded arbor, which is the most common spindle size for 4-1/2" and 5" angle grinders in North America.

No, this brush uses carbon steel wire. Using it on stainless steel or aluminum can leave carbon deposits that lead to rust (after-rust) or galvanic corrosion. You should use a stainless steel wire brush for those materials.

COMBITWIST alternates the direction of the knots, which improves rotational balance, significantly reduces vibration, and prevents the knots from untwisting prematurely, leading to longer brush life and less operator fatigue.

The wire diameter is 0.020 inches. This is considered a heavy-duty gauge, providing greater stiffness and aggression for removing tough contaminants like mill scale and heavy slag compared to finer wires.

It is designed for use with angle grinders (typically 4.5-inch or 5-inch models) that accept a 5/8-11 threaded accessory. Always check your grinder's RPM rating against the brush's max RPM.

While it is a knot wheel, stringer bead brushes are typically much narrower for tight grooves. This is a standard width knot wheel, suitable for broader surface cleaning and general weld prep.

The wheel has a diameter of 5 inches.

Yes, absolutely. Wire wheels can throw loose wires and debris at high speeds. You must wear safety glasses, a face shield, gloves, and appropriate protective clothing.