Specifications
| Product Type | Cut-Off Wheel |
|---|---|
| Diameter | 4-1/2 in (115 mm) |
| Thickness | 1/8 in (3.2 mm) |
| Arbor / Bore | 7/8 in (22 mm) |
| Pieces per Pack | 25 |
| Abrasive Grain | Aluminum Oxide |
| Backing | Double fiberglass mesh |
| Suitable Materials | Mild & Structural Steel, Stainless Steel, Cast Iron |
| Application | Cutting, Light Grinding |
| Compatible Tool | Angle Grinder |
| Max. Operating Speed | 13,300 RPM |
| Brand | Whitby Abrasives |
Description
Whitby Abrasives 4 1/2" depressed center cut-off wheels are designed for cutting and light grinding on mild steel, structural steel, and ferrous materials. This listing is a 25-pack of T42 discs for angle grinders with a 7/8" arbor.
The 1/8" disc thickness is suited for general-purpose cutting on structural steel, angle iron, and flat bar. These wheels are a practical choice for fabrication shops, maintenance teams, and contractors handling a variety of steel cutting tasks.
Each disc is made with premium aluminum oxide abrasive grain for sharp cutting performance and double fiberglass mesh reinforcement for added strength and safety.
Key features
- 1/8" thickness suitable for general-purpose cutting and light grinding
- T42 depressed center profile allows flush and off-angle cuts
- Premium aluminum oxide abrasive grain for reliable, consistent performance
- Double fiberglass mesh reinforcement for increased strength and safety
- Versatile disc for production shops and fabrication use
Applications
- mild and structural steel
- stainless steel and cast iron
- pipes, tubing, and sheet metal
- angle iron and flat bar
Frequently asked questions
Q: What can I cut with these wheels?
A: Mild and structural steel, stainless steel, pipe, angle iron, and bar stock.
Q: Can I grind with a cut-off wheel?
A: These T42 discs are designed primarily for cutting and light grinding; for heavy grinding use a dedicated grinding wheel.
Q: What tool do these fit?
A: 4-1/2" angle grinders with a 7/8" arbor.
Q: Are these reinforced?
A: Yes — double fiberglass mesh reinforcement adds strength and safety.
Safety
Always wear proper eye, face, hand, hearing, and body protection. Use only with compatible tools, guards, and operating speeds, and confirm the tool speed does not exceed the maximum RPM marked on the wheel. Inspect each wheel before use; never use a cracked, dropped, or damaged wheel. Follow the tool manufacturer's instructions and ANSI B7.1 abrasive wheel safety practices.
Why choose Whitby Abrasives
Whitby Abrasives Inc. is a Canadian supplier of professional grinding, cutting, sanding, and finishing abrasives. We focus on consistent quality, fair pricing, and fast shipping across Canada so fabricators, welders, woodworkers, contractors, and DIYers get abrasives that perform job after job. Have a question about sizing or the right grit for your project? Our team is happy to help.