Whitby Abrasives stocks grinding wheels for steel and stainless steel, shipped from Whitby, Ontario.
Whitby Abrasives stocks grinding wheels for steel and stainless steel, shipped from Whitby, Ontario. Depressed-centre (Type 27) grinding wheels come in 4" × 1/4" × 5/8" and in 4-1/2", 5", 6" and 7" × 1/4" × 7/8". Flexible grinding wheels, 1/8" thick, come in 4", 4-1/2" and 5" in 46 to 80 grit. Most come in packs of 5, 10 or 25.
Use a depressed-centre wheel for heavy stock removal, weld grinding and bevelling, and a flexible wheel for lighter grinding, weld blending and finishing. Always check that the wheel's marked maximum RPM is equal to or higher than your grinder's no-load speed, and never run a wheel on a faster tool.
In-stock orders ship from Whitby, Ontario within 1–2 business days to Canada and the United States, and orders of $100 CAD or more ship free. For case or pallet quantities that are not listed, request a quote. Quote requests are answered within 1–2 business days.
Shipping, pickup and returns
- Ships from Whitby, Ontario to Canada and the United States. In-stock orders are dispatched within 1–2 business days.
- Free shipping on orders of $100 CAD or more in Canada and US$100 or more to the US. Otherwise a $20 CAD flat rate in Canada, a $27.50 CAD flat rate to the US, or carrier rates at checkout.
- Local pickup at Unit 2, 1450 Victoria Street East, Whitby, Ontario. Orders are usually ready in about 1 hour during business hours.
- Returns within 14 days of receipt for unused items in original packaging. Refund policy
- Buying in volume? Request a wholesale quote. We reply within 1–2 business days.
How to choose a grinding wheel
For heavy stock removal, weld grinding and bevelling on steel, use a depressed-centre Type 27 grinding wheel, 1/4" thick. For lighter grinding, weld blending and finishing on flat or curved surfaces, use a flexible grinding wheel, 1/8" thick, in 46 to 80 grit. Match the diameter and arbor to your angle grinder and its guard, and check that the grinder's no-load speed does not exceed the maximum RPM marked on the wheel. Never grind with a thin Type 41 cut-off wheel, because it is made for cutting only.
| Wheel | Size (diameter × thickness × arbor) | Grit and grain | Max RPM (spec sheet) |
|---|---|---|---|
| Depressed centre, Type 27 | 4" × 1/4" × 5/8" | Aluminum oxide | 15,300 |
| Depressed centre, Type 27 | 4-1/2" × 1/4" × 7/8" | Aluminum oxide | 13,300 |
| Depressed centre, Type 27 | 5" × 1/4" × 7/8" | Aluminum oxide | 12,250 |
| Depressed centre, Type 27 | 6" × 1/4" × 7/8" | Aluminum oxide | 10,200 |
| Depressed centre, Type 27 | 7" × 1/4" × 7/8" | Aluminum oxide | 8,500 |
| Flexible | 4" × 1/8" × 5/8"; 4-1/2" and 5" × 1/8" × 7/8" | 46, 60 or 80 grit; zirconia alumina and aluminum oxide | See wheel label |