What is a metal grinder called?

What is a metal grinder called? - Fix It Cape Town

Metal cutting is a critical process in various industries such as construction, automotive, and manufacturing. To achieve precise and efficient cuts, professionals rely on the use of grinders. Grinders are versatile power tools that come in various types and sizes, each designed for specific applications. In this article, we will explore the different types of grinders used for metal cutting and their specific applications, from angle grinders to die grinders.

Angle Grinders

Angle grinders are perhaps the most common type of grinder used for metal cutting. Also known as disc grinders or side grinders, these tools feature a rotating abrasive disc that allows for precise and fast cutting. Angle grinders are available in different sizes, ranging from 4.5 inches to 9 inches, with the larger ones typically used for heavy-duty applications.

Applications of Angle Grinders:

  • Metal fabrication: Angle grinders are commonly used in metal fabrication processes such as cutting, grinding, and polishing metal. They can easily cut through steel, iron, and other metals, making them ideal for shaping and finishing metal components.

  • Construction: Angle grinders are widely used in the construction industry for tasks such as cutting rebar, removing rust, and cutting through concrete or masonry. Their versatility and power make them indispensable for construction professionals.

  • Automotive: Angle grinders are also commonly used in the automotive industry for tasks like removing paint, cutting metal panels, and grinding welds. Mechanics and auto body technicians rely on these grinders for their precision and speed.

  • DIY projects: Angle grinders are not limited to professional use. They are also popular among DIY enthusiasts for various projects, such as cutting metal pipes, removing old paint, or shaping metal for custom furniture or art pieces.

Bench Grinders

Unlike angle grinders, bench grinders are stationary tools that are mounted on a workbench or pedestal. These grinders consist of two wheels: a coarse grinding wheel and a fine grinding wheel, typically made of abrasive material. Bench grinders are not specifically designed for metal cutting. However, they are used for sharpening tools and removing burrs from metal edges.

Applications of Bench Grinders:

  • Tool sharpening: Bench grinders are commonly used for sharpening various tools, including chisels, knives, and drill bits. Their high-speed rotating wheels help restore sharpness to dull blades and edges.

  • Deburring: Bench grinders are also used for removing burrs from metal edges. After cutting or machining metal, typically, sharp burrs are left along the edges. A bench grinder can easily remove these burrs, resulting in smooth and safe edges.

Die Grinders

Die grinders, also known as rotary tools, are handheld power tools that feature a rotating spindle for various cutting and grinding applications. They are smaller in size compared to angle grinders, allowing for intricate and detailed work. Die grinders are available in electric or pneumatic (air-powered) versions, giving users flexibility in choosing the power source.

Applications of Die Grinders:

  • Precision cutting: Die grinders excel in precision cutting tasks that require intricate and detailed work. They are commonly used in metalworking projects such as shaping, engraving, and carving metal pieces.

  • Polishing and finishing: Die grinders, equipped with polishing attachments or abrasive wheels, are also used for metal polishing and finishing. They can remove scratches, burrs, and other imperfections, resulting in a smooth and professional-looking surface.

  • Weld cleaning: After welding metal, die grinders are used to clean the weld bead and prepare the surface for further finishing or coating. They can remove any excess material and ensure a clean and smooth weld.


Q: Are all grinders suitable for metal cutting?

A: No, not all grinders are suitable for metal cutting. Angle grinders and die grinders, specifically designed for metal cutting, are the most recommended options.

Q: What safety precautions should I take when using grinders for metal cutting?

A: When using grinders, always wear appropriate safety gear such as safety glasses, gloves, and ear protection. Ensure that the workpiece is securely clamped, and never operate the grinder without the guard in place. Additionally, follow proper techniques and avoid placing excessive pressure on the grinder.

Q: Can I use angle grinders for polishing metal surfaces?

A: Yes, angle grinders can be used for polishing metal surfaces. However, it is important to use the appropriate polishing attachments or abrasive wheels to achieve the desired results.


Grinders play a crucial role in metal cutting processes, offering professionals and DIY enthusiasts the ability to achieve precision and efficiency in their work. Angle grinders, with their varied sizes and versatility, are the go-to choice for most metal cutting tasks. Bench grinders excel in tool sharpening and deburring applications. Lastly, die grinders are perfect for precision cutting, polishing, and weld cleaning tasks. By understanding the specific applications of each type of grinder, you can choose the right tool for your metal cutting needs and achieve outstanding results. Remember to prioritize safety precautions when working with grinders to ensure a safe and productive working environment.

Handyman Cape Town

Open chat
Contact us now
Scan the code
Hello 👋
Can we help you get a free quote?