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Walter ALLSTEEL 4.5-Inch Flap Disc 120 Grit with Trimmable Backing

$10.94/ea $68.40/10 per each only $6.84/eaSave 37%

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OVERVIEW

Achieve Flawless Finishes on Steel Welds

For professional welders and fabricators, the finish is just as important as the weld itself. The Walter 15W462 ALLSTEEL™ Flap Disc (4-1/2" x 7/8", Grit 120) is designed to help you transition from a rough weld to a smooth, polished surface with ease. This disc is specifically formulated for working with steel, utilizing a high-quality zirconia alumina grain blend that cuts cool and fast. The 120 grit rating makes this specific SKU perfect for the final steps of your workflow—blending fillet welds, smoothing out rough grinds, and preparing the metal for final coating or inspection without gouging the base material.

One of the most frustrating aspects of grinding is wasting usable abrasive because the backing pad gets in the way. Walter solves this with their trimmable backing technology. When the flaps wear down to the edge of the backing, you don't have to throw the disc away. Simply trim the plastic backing against a piece of scrap metal to reveal fresh, unused abrasive flaps underneath. This allows you to use virtually 100% of the cloth, giving you more arc time and less downtime swapping out consumables. The Type 29 (conical) shape or standard profile ensures optimal contact angle for both flat surface grinding and working into contours.

Comfort and control are critical during long shifts. The ALLSTEEL™ disc is balanced to run smoothly on your angle grinder, minimizing vibration and hand-arm fatigue. The self-sharpening grains require less pressure to cut effectively, allowing the tool to do the work. Whether you are deburring a fresh cut, blending a corner joint, or cleaning up spatter, the 15W462 delivers a professional finish that enhances the aesthetic and structural integrity of your steel projects.

Additional Information
Brand:Walter Surface Technologies
Diameter:4.5"
Arbor (in):7/8"
Grit:120
Used To Grind:Steel
Wheel Style:Type 29
Grain Type:Zirconia Alumina
Backing Material:Trimmable Plastic
Max RPM:13300
Product Line:ALLSTEEL™
Packaging Description:10 per each

INCLUDED

  • 1 x Walter ALLSTEEL™ Flap Disc (4-1/2" x 7/8", Grit 120)

APPLICATIONS

  • Blending and finishing fillet welds on steel structures
  • Heavy deburring of cut steel edges
  • Surface preparation prior to painting or coating
  • Removing light rust and oxidation
  • Smoothing out rough grinding marks
  • General fabrication and maintenance on mild steel

FAQ

The Walter 15W462 ALLSTEEL flap disc is specifically designed for use on steel and structural steel applications. While it can abrade other metals, its zirconia alumina grain blend is optimized for the hardness and properties of mild steel.

The trimmable backing allows you to trim the plastic support of the disc as the abrasive flaps wear down. This exposes fresh, unused abrasive material closer to the center of the disc, extending its life and allowing you to use more of the product.

No, 120 grit is a fine abrasive intended for finishing, blending, and cleaning. For heavy stock removal or grinding down large welds, a coarser grit like 40 or 60 would be more appropriate.

The maximum safe operating speed for this 4-1/2" flap disc is typically 13,300 RPM. Always verify the rating printed on the disc itself before use.

Yes, the 15W462 has a 7/8" arbor hole, which is the standard mount for most 4-1/2" and 5" angle grinders used in North America.

Zirconia Alumina is tougher and more durable than standard Aluminum Oxide. It is self-sharpening, meaning the grains fracture to reveal new sharp edges, providing a faster cut rate and longer life, especially on ferrous metals.

Yes, the flap disc construction is excellent for blending corners and fillet welds because the overlapping flaps provide a softer, more forgiving touch than a solid grinding wheel, reducing the risk of gouging.

Industrial flap discs like the 15W462 are often sold in packs (commonly 10), but can be purchased individually depending on the distributor. Check the specific listing for pack quantities.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet