13G604 - Walter 6" Knot-Twisted Cup Brush with Ring, Steel .020"

Name: Walter 6" Knot-Twisted Cup Brush with Ring, Steel .020"
SKU: 13G604
Availability: BackOrder

Packaging: 1 in a pack

$87.04/ea

Usually ships within 3-5 business days

SKU: 13G604 Categories: Abrasives, Cup Wheel and Cup Brushes

OVERVIEW

Technical Overview of the Walter 13G604

The Walter 13G604 is a high-performance 6-inch cup brush engineered for industrial surface preparation and finishing. This abrasive tool features a knot-twisted wire configuration, utilizing 0.020-inch carbon steel wire that has been oil-hardened and tempered. This specific metallurgical treatment ensures that the wires maintain their stiffness and cutting integrity even under high thermal loads generated during aggressive brushing operations.

A distinguishing technical feature of this model is the inclusion of a safety support ring. In standard cup brushes, centrifugal force and operational pressure can cause wires to flare outward prematurely, reducing the effective cutting angle and leading to wire fatigue. The support ring on the 13G604 constrains the wire bundles, maintaining a tighter, more aggressive face profile for a longer duration. As the wire wears down, the user can remove the ring to expose the remaining wire length, effectively maximizing the usable abrasive material.

The brush is balanced to tight tolerances to minimize vibration, which protects the bearings of the power tool and reduces operator fatigue (HAVS). It is designed with a standard 5/8"-11 threaded arbor for direct mounting onto compatible angle grinders. With a maximum rotational speed of 6,600 RPM, it is optimized for heavy material removal tasks on large steel surfaces.

Additional Information
Packaging Description:1 per each, 1 in a pack
Used to Grind:Steel
Diameter (in):6"
Arbor (in):5/8"
Brand:Walter
Wheel Style:Twist Knot
Wire Diameter:0.020"
Wire Material:Carbon Steel
Brush Style:Knot-Twisted with Safety Ring
Max RPM:6,600

INCLUDED

1x 6" Knot-Twisted Cup Brush with Ring (Steel)

APPLICATIONS

Heavy-duty cleaning of large steel surfaces
Removal of weld scale, spatter, and slag
Stripping rust, paint, and corrosion
Deburring structural steel components
Surface preparation prior to welding or coating
Cleaning casting seams

FAQ

The safety support ring prevents the wire knots from flaring out prematurely. This maintains a more aggressive cleaning action and extends the life of the brush. Once the wire wears down to the ring, the ring can be removed to expose more wire.

No, this brush uses carbon steel wire. Using it on stainless steel will cause 'after-rust' or contamination. For stainless steel, you should use a stainless steel wire brush (typically with blue color coding from Walter).

This brush has a 5/8"-11 threaded arbor, which fits most standard North American 6-inch, 7-inch, and 9-inch angle grinders.

The maximum safe operating speed is 6,600 RPM. Always ensure your grinder's RPM does not exceed this rating.

Knot-twisted wire is much stiffer and more aggressive, suitable for heavy removal of rust and scale. Crimped wire is more flexible and better for lighter cleaning or surface finishing.

Once the wire has worn down flush with the ring, the ring can usually be knocked off using a hammer and a punch or a similar tool to expose the remaining wire length.