Skip to Main Content
Canadian
Canadian owned and operated

13F314 - Walter 3-Inch Stainless Steel Knot Cup Brush 5/8-11 Arbor

Packaging: 1 per each
$78.36/ea $48.98/1 per each only $48.98/eaSave 37%

Usually ships within 3-5 business days

SKU: 13F314 Categories: ,

OVERVIEW

Precision Cleaning for Stainless Steel Fabrication

The Walter 3" Stainless Steel Knot Twisted Cup Brush (SKU: 13F314) is a premium abrasive tool designed specifically for the rigorous demands of industrial metalworking. When working with stainless steel, using the correct abrasive media is critical to maintaining the integrity of the material. This brush is constructed with high-quality stainless steel wire, which is essential for preventing ferrous contamination that can lead to "after-rust" or oxidation on the finished workpiece. It is an indispensable tool for fabricators in the food processing, pharmaceutical, and chemical industries where surface purity is paramount.

Engineered for heavy-duty applications, the knot-twisted wire configuration provides a stiff, aggressive brushing action. This makes it highly effective for removing stubborn contaminants such as heavy weld scale, thick corrosion, and tenacious spatter. Unlike crimped wire brushes which are better suited for light surface finishing, the knot-twisted design concentrates force at the tips of the wires, allowing for rapid material removal and efficient deburring of rough edges. The 3-inch diameter is compact enough to access tight spaces while still providing a substantial surface area for cleaning larger sections.

Operational efficiency and safety are core to Walter's design philosophy. This cup brush features perfect rotational balance, a critical specification that minimizes vibration during high-speed operation on angle grinders. Reduced vibration not only protects the power tool's bearings and gears but also significantly lowers operator fatigue, allowing for longer periods of use with greater precision. The integrated 5/8"-11 threaded arbor ensures a secure, spin-on attachment to standard angle grinders, facilitating quick changeovers and safe usage.

Key Industrial Applications

  • Weld Cleaning: Removal of heat tint, slag, and spatter from stainless steel welds.
  • Surface Preparation: Cleaning metal surfaces prior to painting, coating, or further welding.
  • Deburring: Removing sharp edges and burrs from cut or machined parts.
  • Scale Removal: Stripping heavy mill scale and oxidation without altering the base metal geometry.
Additional Information
Packaging Description:1 per each
Size (in):3"
Arbor (in):5/8"
Wheel Style:Twist Knot
Item:Brush
Used to Grind:Stainless
Wire Material:Stainless Steel
Wire Type:Knot Twisted
Thread Size:5/8-11
Application:Deburring, Heavy Duty Cleaning, Weld Cleaning
----- new values below ----
Wire Material:Stainless Steel
Wire Type:Knot Twisted
Thread Size:5/8"-11
Application:Heavy-duty cleaning, Deburring, Weld cleaning
brand:walter
size-in:3
arbor-in:5-8
wheel-style:twist-knot
item:brush
used-to-grind:stainless
packaging-description:1-per-each

INCLUDED

  • 1x 3" Stainless Steel Knot Twisted Cup Brush (5/8"-11 Arbor)

APPLICATIONS

  • Deburring machined stainless steel parts
  • Cleaning weld seams and removing heat discoloration
  • Removing heavy rust, scale, and corrosion
  • Surface preparation before welding or coating
  • Removal of weld spatter on stainless steel structures

FAQ

This brush features a standard 5/8"-11 threaded arbor, designed to screw directly onto the spindle of most 4.5-inch and 5-inch angle grinders.

While it will physically work on carbon steel, it is not recommended if you plan to use the brush on stainless steel later. Using it on carbon steel will embed iron particles into the wire, which can then be transferred to stainless steel, causing rust/contamination.

Knot twisted wire is much stiffer and more aggressive, making it suitable for heavy-duty cleaning, deburring, and removing thick scale. Crimped wire is more flexible and better for light cleaning or surface finishing.

Always check the physical stamping on the brush cup for the exact Max RPM rating. Ensure your angle grinder's RPM does not exceed the rating on the accessory.

Stainless steel brushes can be used on aluminum to prevent iron contamination, but for optimal performance on aluminum, specific brushes designed to resist loading (clogging) are often preferred. However, this brush is safe to use on aluminum regarding contamination.

No, the brush itself does not include a guard. You must always use the safety guard provided with your angle grinder and wear appropriate PPE, including eye and face protection.

The overall diameter of the cup brush is 3 inches.

A balanced brush reduces vibration, which protects the grinder's bearings from premature wear and significantly reduces operator fatigue during extended use.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet