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Walter HP XX 4-1/2 Inch Spin-On Grinding Wheel for Steel

$13.46/ea $170.80/20 per each only $8.54/eaSave 37%

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OVERVIEW

Aggressive Grinding Power for the Professional Welder

When you have a heavy weld to grind down or a thick steel plate to bevel, you need a wheel that bites hard and lasts long. The Walter HP XX™ 4-1/2" x 1/4" Spin-On Grinding Wheel is built for welders who demand the best performance from their angle grinders. This isn't your average hardware store disc; it is a high-performance abrasive tool designed to hog away metal faster than anything else in the Walter lineup. If you are tired of leaning on your grinder only to have the wheel disappear before the job is done, the HP XX™ is the upgrade you have been looking for.

The first thing you will notice is the speed. The HP XX™ features advanced abrasive grains that stay sharp, cutting through steel scale and weld metal with ease. This means you can apply less pressure and let the wheel do the work, reducing fatigue in your arms and wrists during long shifts. Whether you are prepping a joint for a critical weld, removing spatter, or smoothing out a rough cut, this wheel gives you the control and aggression needed to get a clean surface in record time. It is specifically formulated for steel, ensuring it doesn't load up or glaze over when the heat turns up.

Time is money in the welding shop, and the Spin-On hub is a game-changer for efficiency. Forget about hunting for that pin wrench that always seems to go missing right when you need it. With the Spin-On system, the 5/8"-11 threaded hub is built right into the wheel. You simply spin the old wheel off and spin the new one on by hand. The rotation of the grinder keeps it tight while you work. It’s fast, secure, and eliminates the hassle of dealing with separate flanges and locking nuts, getting you back to grinding in seconds.

Longevity is where the HP XX™ truly shines. It is engineered to provide the longest life of any Walter grinding wheel, meaning fewer trips to the tool crib and more time making sparks. A longer-lasting wheel also means consistent diameter for longer periods, giving you better reach and more usable abrasive material per disc. With 20 wheels in a box, this pack ensures you are stocked up for the big jobs. Experience the difference of Italian-made quality and see why professional fabricators trust Walter for their toughest grinding applications.

Additional Information
Brand:Walter Surface Technologies
Diameter:4.5"
Thickness:0.25"
Used To Grind:Steel
Packaging Description:20 in a box
Arbor In:5/8"
Mounting Type:Spin-On
Country Of Manufacture:Italy
Package Weight:9.68 lb

INCLUDED

  • (20) HP XX™ 4-1/2" x 1/4" Spin-On Grinding Wheels

APPLICATIONS

  • Heavy-duty steel grinding and stock removal
  • Weld leveling and edge preparation
  • Deburring cut metal edges
  • Shaping and beveling steel plates
  • General fabrication and maintenance repair
  • Construction and structural steel work

FAQ

The HP XX™ is specifically designed for use on steel. It is formulated to provide aggressive removal rates and long life on ferrous metals.

The Spin-On system features a built-in 5/8"-11 threaded hub that allows for tool-free installation and removal. This reduces downtime associated with changing wheels and eliminates the need for pin wrenches.

This wheel has a diameter of 4-1/2 inches and a thickness of 1/4 inch.

The Walter 08K450 HP XX™ wheels are sold in a package of 20 units.

No, this is a Type 27 depressed center grinding wheel with a built-in hub. It does not require a backing pad, but it must be used with the proper safety guard on your angle grinder.

The HP XX™ is marketed as having the highest removal rate and the longest life in Walter's grinding wheel lineup, offering the lowest overall cost of grinding.

While it will cut stainless steel, the HP XX™ is optimized for carbon steel. For stainless steel, Walter offers specific formulations (like the HP or Allsteel series) to prevent contamination and ensure optimal performance.

Always refer to the label on the actual wheel for the certified Max RPM. Generally, 4-1/2" grinding wheels are rated for approximately 13,300 RPM, but safety compliance requires checking the specific product markings.

CATALOGUE & SPEC SHEETS

Safety Data Sheet
Google Rating
4.9
Based on35reviews
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