Canadian owned and operated
The Walter 08-B-512 A30 Combo is a specialized abrasive wheel designed for industrial MRO and fabrication environments requiring multi-process capabilities. This 5-inch diameter wheel features a Type 27 (depressed center) geometry, which allows for flush cutting and better clearance in tight spaces compared to flat Type 1 wheels. With a thickness of 1/8 inch (3.2mm), it bridges the gap between a dedicated cutting wheel (typically 0.045") and a grinding wheel (typically 1/4"), offering a balanced profile suitable for aggressive notching and light stock removal.
Technically, the wheel utilizes a high-grade Aluminum Oxide (A30) grain structure bonded with a specialized resin matrix. This formulation is optimized for use on ferrous metals, including mild steel and stainless steel. The "Combo" designation indicates that the internal reinforcement fiberglass mesh is layered to support both the radial forces of cutting and the axial/lateral forces of grinding. This structural reinforcement is critical for compliance with safety standards during off-hand operations where side loading occurs.
The 7/8-inch arbor ensures compatibility with the vast majority of industrial 5-inch angle grinders. The wheel is particularly effective in pipeline applications (root pass cleaning, beveling) and structural steel work where operators frequently alternate between parting material and smoothing edges. By maintaining a consistent cut rate and cool grinding action, the A30 Combo minimizes heat affected zones (HAZ) on stainless steel, preserving the material's corrosion resistance properties.
| Additional Information |
|---|
| Diameter:5" |
| Thickness:0.125" |
| Arbor In:7/8" |
| Brand:Walter Surface Technologies |
| Grit:30 |
| Used To Grind:Steel or Stainless |
| Packaging Description:25 per each |
| Wheel Type:Type 27 (Depressed Center) |
| Model:A30 Combo |
| Grain Type:Aluminum Oxide |
| Max RPM:12,200 |
| Arbor (in):7/8" |
