Specifications
| Product Type | Cut-Off Wheel (Type 41 / Flat) |
|---|---|
| Diameter | 4 in (100 mm) |
| Thickness | 0.045 in (1.1 mm) |
| Arbor / Bore | 3/8 in (10 mm) |
| Pieces per Pack | 25 |
| Abrasive Grain | Aluminum Oxide |
| Backing | Double Fiberglass Mesh |
| Suitable Materials | Mild & Structural Steel, Stainless Steel, Cast Iron |
| Application | Cutting |
| Compatible Tool | Angle Grinder / Cut-Off Tool |
| Max. Operating Speed | 15,300 RPM |
| Brand | Whitby Abrasives |
Description
Whitby Abrasives thin cut-off discs are designed for cutting metal, stainless steel, and ferrous materials. This listing is a 25 PACK of 4" x 0.045" x 3/8" flat (T41) discs for angle grinders and compatible tools.
The thin 0.045" kerf profile helps reduce cutting resistance, heat buildup, burr formation, and material waste. These wheels are well-suited for fabricators, welders, plumbers, and metalworkers who need fast, repeatable cuts in the shop or on the jobsite.
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
- Thin 0.045" kerf minimizes material loss and reduces cutting effort
- Premium aluminum oxide abrasive grain delivers fast, efficient cuts
- Double fiberglass mesh reinforcement for increased safety and durability
- Consistent performance across multiple cuts without glazing or loading
- Low heat generation reduces discoloration and heat-affected zones
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: No — cut-off wheels are for cutting only. Use a grinding wheel for grinding.
Q: What tool do these fit?
A: Angle grinders and cut-off tools that accept a 4" disc with a 3/8" arbor.
Q: Are these reinforced?
A: Yes — double fiberglass mesh reinforcement adds strength and safety.
Safety
For cutting only. Do not use for grinding. 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.