Angle grinders are powerful tools commonly used to cut various metals, including steel, aluminum, copper, and brass, across different industries such as construction, metalworking, and automotive repair.
When choosing a cutting disc for metal, it’s essential to consider factors like the type and thickness of the metal you’re working with, as different discs are suited for specific applications. Angle grinders equipped with metal cutting discs excel at making straight cuts, curved cuts, or notches in metal surfaces. To ensure safety and accuracy when cutting metal with an angle grinder, it’s essential to exercise caution and use proper safety measures.
Quick Answer
Yes, you can use an angle grinder to cut metal. Angle grinders equipped with the appropriate metal cutting discs are efficient tools for making straight cuts, curved cuts, or notches in various metals, including steel, aluminum, copper, and brass.
The Best Angle Grinder Blades for Cutting Metal
Selecting the right angle grinder blades for metal cutting hinges on the specific task at hand. For general cutting of steel, aluminum, copper, and brass, hard and abrasive type 1 or type 27 blades are ideal. Thin blades are recommended when working with delicate materials like thin metal sheets or aluminum foil to prevent warping.
When tackling the challenge of cutting tough stainless steel, specialized stainless steel cutting blades, featuring a tougher abrasive material for durability, are a must. For exceptionally hard metals like hardened steel or cast iron, opt for blades designed explicitly for hard metals, incorporating an extremely hard abrasive material. For this article however, we’re going to stick with general use-cases, sticking to blades that are decent all-rounders and will get the job done.
Here is a quick list of considerations before you decide on a blade to purchase:
- Make sure your angle grinder is compatible with the blade in question, this shouldn’t really be an issue in most cases. Just stick to a blade size that you usually use.
- Blade thickness determines how precise your cut is, and how quickly you will be done with the task at hand. Thinner blades are less powerful, but will quickly cut through thin sheets of metal with great precision.
- Thicker blades on the other hand will force you to go slower, but you will be able to cut a lot more than just metal sheets with them.
| Brand | Pack Size | Purchase |
|---|---|---|
| WORKPRO | 10 & 20 | Buy on Amazon |
| BHA | 25 | Buy on Amazon |
| SALI | 5-500 | Buy on Amazon |
| SHDIATOO | 25-50 | Buy on Amazon |
WORKPRO 20-Pack Cut-Off Wheels
These cutting discs from WORKPRO have been designed for efficient and safe metal cutting. These 4-1/2 x 7/8-inch wheels feature a unique blend of corundum and white alundum grain, reinforced by double fiberglass mesh for durability. The ultra-thin 3/64-inch design ensures precise, burr-free cuts with minimal material loss. Suitable for use with 4-1/2 inch angle grinders, these discs can operate at speeds up to 13,000 RPM (80M/S).They are ideal for cutting various metals, including carbon steel, stainless steel, iron, and more.
- Available in 3 inch diameter as well as 4-1/2 inch.
- Comes in packs of 10 as well as 20 for extended use.
- Double fiberglass mesh for durability and safety.
- Ultra-thin design results in precise, burr-free cuts.
- Suitable for cutting carbon steel, stainless steel, and more.
- Operating speeds up to 13,000 RPM (80M/S).
BHA 25-Pack of Premium Cutting Discs
The BHA Metal and Stainless Steel Cut Off Wheels are a top choice for metal cutting tasks. These discs are designed to fit various angle grinder brands, including Makita, Metabo, DEWALT, KIMO, PORTER-CABLE, BLACK+DECKER, and more, making them a versatile option for metalworking professionals and DIY enthusiasts alike. Their 1/16-inch thickness enhances their life span, and the compatibility with a wide range of angle grinders ensures their versatility. You can trust in their durability, thanks to the reinforced fiberglass mesh construction and consistent thickness across the entire pack. Whether you’re working on a professional project or a DIY endeavor, these cutting discs offer a reliable and efficient solution for a variety of metal materials, making them a must-have for your metalworking toolkit.
- Comes in 25-pack of premium cutting discs, measuring 4.5″ x 1/16″ with a 7/8″ arbor.
- Slender 1/16-inch thickness for extended life and durability.
- Compatible with 4.5″ angle grinders, suitable for cutting various materials.
- Designed to fit a wide range of angle grinder brands, enhancing versatility.
- Reinforced with fiberglass mesh for added durability and safety.
- Consistent thickness across the entire pack ensures efficient cutting performance for both professional and DIY projects.
SHDIATOOL 4-1/2 Inch Diamond Blades
For cost effective solution and excellent perfomance SHDIATOOL 4-1/2 Inch Diamond Blade would be a remarkable option. Its suitable diameter and thickness make it compatible with most hand-held grinders or trim saws featuring a 7/8″ arbor. This blade is suitable for a wide range of applications, from cutting metals like steel and cast iron to handling materials like granite, marble, and wood. It’s a versatile and reliable choice for both DIY enthusiasts and professionals working on metal cutting tasks.
- Its Vacuum Brazed technology and coated abrasive grains provide an excellent combination of cutting speed and tool life that’s hard to match.
- Features a suitable diameter of 115mm and a thickness of approximately 2.3mm-2.4mm.
- The premium grains that are permanently brazed to the steel core makes it unbreakable
- Vaccum Brazed Technology make these blades exceptionally heat resistant.
- Its heat-treated hi-speed steel core guarantees longevity and can withstand the demands of dry and fast cutting.
- Designed for cutting various tough materials, including metals like steel and cast iron
SALI 50 Cut Off Wheels
When precision and effecient metal cutting is essential, the SALI Cut Off Wheel is the answer. The ultra-thin cutting thickness of 0.0472 inches enhances sharpness, increasing cutting efficiency and saving valuable working time. These wheels are universally compatible with 4-1/2-inch angle grinders, and they come in reliable packaging, preventing moisture and damage during transportation and ensuring convenient storage at home. With heat-treated premium aluminum oxide grains, these wheels excel in quick cutting while maintaining exceptional durability, making them a reliable choice for all your metal cutting needs.
- Package includes 25- 50 cutting wheels.
- Thin profile of 0.045 inches ensures fast and burr-free cutting.
- Compatible with 4-1/2-inch angle grinders.
- Features a 7/8-inch arbor.
- Capable of operating at up to 13,300 RPM and 80M/S.
- Proprietary aluminum oxide grain combination provides aggressive cutting action.
- Highly effective for cutting materials like carbon steel, stainless steel, pipe, iron, copper, and other ferrous metals.
- Emphasizes the importance of using necessary protective gear when working with these cutting discs for safety.
Tips and Tricks for Cutting Metal with an Angle Grinder
Here are proper headings for the provided tips and tricks for cutting metal with an angle grinder:
- Choose the Right Disc: Use a metal cutting disc for cleaner cuts and durability.
- Secure the Metal: Clamp the metal securely to prevent movement during cutting.
- Employ a Safety Guard: Use a guard to protect against sparks and debris.
- Gradual Speed Increase: Begin the cut slowly to reduce the risk of kickback.
- Apply Light Pressure: Avoid excessive pressure to prevent overheating or binding of the disc.
- Be Aware of Your Environment: Check for obstacles and potential hazards around your workspace.
- Take Regular Breaks: Prevent fatigue by scheduling breaks during prolonged use.
Additional Tips for Optimal Results
- Maintain Blade Sharpness: Ensure the blade is sharp to improve safety and cutting efficiency.
- Select the Correct Disc Type: Choose discs tailored to the specific metal you are cutting, like stainless steel.
- Use a Cutting Guide: Employ guides like straightedges or wooden guides for precise cuts.
- Cut Away from Your Body: Minimize the risk of accidents in case of kickback.
- Avoid Overheating: Prevent disc warping or cracking by monitoring heat levels.
- Allow Cooling Time: Let the disc cool down after extended use to prolong its lifespan.
