Walter HP 4-1/2 Inch Spin-On Grinding Wheel Type 28

Name: Walter HP 4-1/2 Inch Spin-On Grinding Wheel Type 28
Brand: Welders Helper
SKU: 08B451
Price: 127.60 CAD
Availability: InStock

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SKU: 08B451 Categories: Abrasives, Grind Wheels

OVERVIEW

Walter HP Spin-On: The Welder's Choice for Fast Metal Removal

Professional welders know that preparation and finishing are just as important as laying the bead itself. The Walter 08B451 HP Grinding Wheel is built to handle the rigorous demands of the welding trade. This 4-1/2" x 1/4" abrasive wheel is designed to tackle the toughest steel grinding tasks, from prepping bevels before welding to grinding down heavy reinforcement after the pass. The "HP" stands for High Performance, and this wheel lives up to the name by offering an exceptional balance of speed and durability.

One of the standout features for welders is the Spin-On attachment. In a busy shop or on a job site, hunting for a wrench to change a grinding disc is a waste of valuable time. With the Spin-On system, you simply hand-tighten the wheel onto the grinder's spindle. The rotation of the tool self-tightens the wheel during use, and it can be easily removed by hand when it's time for a replacement. This system also eliminates the interference often caused by standard mounting nuts, allowing you to grind flatter and get closer to the surface without scratching it with the hardware.

The Type 28 saucer shape is another feature that makes this wheel a favorite among fabricators. Unlike flat wheels, the Type 28 geometry is concave, which allows you to hold the grinder at a lower angle. This is particularly useful when blending welds on flat surfaces or working in tight spots where a steep angle would dig in or gouge the metal. The smooth grinding action of the Walter HP wheel ensures you get the job done quickly without sacrificing control. Whether you are deburring steel plate, shaping structural beams, or cleaning up spatter, this wheel provides the bite and longevity needed to keep your production moving.

Why Welders Prefer This Wheel:

Fast Changes: Swap wheels in seconds without tools.
Better Control: Saucer shape allows for smoother blending.
Aggressive Cut: Formulated specifically for grinding steel welds.

Additional Information
Brand:Walter Surface Technologies
Diameter:4.5"
Thickness:0.25"
Used To Grind:Steel
Arbor (in):5/8"
Wheel Type:Type 28 (Saucer)
Mounting System:Spin-On
Product Line:HP
Application Material:Steel
Packaging Description:20 per each

INCLUDED

1x Walter HP 4-1/2" x 1/4" Type 28 Spin-On Grinding Wheel

APPLICATIONS

Heavy-duty grinding of steel welds
Deburring steel plates and profiles
Edge preparation and beveling for welding
Shaping metal parts
Surface leveling and blending
Removing fabrication defects

FAQ

The Spin-On system features an integrated 5/8-11 threaded hub that allows for tool-free wheel changes. It ensures the wheel is perfectly centered, reducing vibration and extending grinder life, while eliminating the need for flange nuts and pin keys.

Type 27 wheels are flat depressed center wheels, while Type 28 wheels have a saucer (concave) shape. The Type 28 shape allows for grinding at a lower angle (15-25 degrees), providing better visibility and coverage, especially on flat surfaces.

This specific HP wheel is optimized for use on steel. While it can physically grind stainless, Walter offers specific formulations (like HP XX or Allsteel) that are contaminant-free and better suited for stainless steel to prevent corrosion issues.

This wheel is 4-1/2 inches in diameter and fits angle grinders designed for 4-1/2 inch or 5 inch wheels that have a standard 5/8-11 spindle thread.

No, this is a bonded abrasive grinding wheel with a rigid structure and an integrated hub. It does not require a backing pad.

The wheel is 1/4 inch thick, which is the standard thickness for heavy-duty grinding and stock removal applications.

No, 1/4 inch thick wheels are designed for grinding (face usage). For cutting applications, you should use a cutting wheel (typically 1/16 inch or thinner) to ensure safety and efficiency.