Walter 4-1/2 Inch Knot Twisted Saucer Cup Brush M14 Thread

Name: Walter 4-1/2 Inch Knot Twisted Saucer Cup Brush M14 Thread
Brand: Welders Helper
SKU: 13K452
Price: 25.19 CAD
Availability: InStock

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SKU: 13K452 Categories: Abrasives, Bench Grinding Wheels

OVERVIEW

Aggressive Weld Cleaning for Tough Jobs

Tackle the toughest cleaning jobs with the Walter 13K452 4-1/2" Knot Wire Saucer Cup Brush. Designed for welders who demand reliability, this brush features a specialized M14 thread mount, ensuring a secure fit for compatible grinders. If you are working on pipe welds or structural steel, the knot-twisted design digs deep to remove slag, rust, and oxidation without hesitation. It’s the perfect companion for surface preparation and post-weld cleanup.

What sets this brush apart is its saucer-cup shape. Unlike flat wheels or standard cups, the saucer shape lets you get into the root of the weld and tight corners with ease. It combines the best features of both styles, giving you a versatile tool that stays on your grinder longer. Walter’s commitment to quality means you get a brush that is perfectly balanced, running smooth and true right out of the box. No more wobbling or excessive vibration—just smooth, powerful cleaning action.

Safety is built into every bristle. The reinforced construction keeps the knots secure even under high RPMs, protecting you from flying wires and ensuring the brush lasts through the toughest shifts. Whether you are removing heavy spatter or cleaning up an old steel surface, the Walter 13K452 delivers the performance you need to get the job done right the first time.

Why Choose Walter Wire Brushes?

Longer Life: High-grade steel wire resists wear and breakage.
Better Access: Unique shape reaches where others can't.
Smooth Running: Balanced design reduces grinder wear and user fatigue.

Additional Information
Brand:Walter Surface Technologies
Diameter:4.5"
Wheel Style:Twist Knot
Item:Brush
Used To Grind:Steel
Thread Size:M14 x 2.0
Wire Material:Carbon Steel
Brush Type:Saucer Cup
Wire Diameter:0.020"
Packaging Description:1 per each

INCLUDED

1 x Walter 4-1/2" Saucer-Cup Knot Wire Brush (M14 Thread)

APPLICATIONS

Cleaning root pass welds in pipeline construction
Removing heavy rust, scale, and corrosion from steel
Surface preparation prior to painting or coating
Cleaning fillet welds and tight corners
Deburring and slag removal

FAQ

This brush features an M14 x 2.0 thread. Please verify your angle grinder spindle size before purchasing, as this is different from the standard 5/8"-11 thread found on most North American grinders.

No, this brush uses carbon steel wire. Using it on stainless steel can cause 'after-rust' or contamination. You should use a stainless steel wire brush (usually marked with blue packaging or 'INOX') for stainless applications.

A saucer-cup brush features a shape that is a hybrid between a wheel and a cup brush. This allows it to clean hard-to-reach areas like inside corners, fillet welds, and pipe roots more effectively than standard shapes.

Always check the stamp on the product itself, but generally, 4-1/2" wire brushes are rated for approximately 12,500 RPM. Never exceed the rated RPM of the accessory.

Knot-twisted wire is much stiffer and more aggressive than crimped wire. It is designed for heavy-duty material removal, such as taking off thick rust, scale, or heavy weld slag.

It fits 4-1/2 inch grinders that have an M14 spindle. If your grinder has a standard 5/8"-11 spindle, this brush will not fit. Check your tool's manual to confirm the thread size.