Can I use smaller disc on grinder?

The size of the disc should have a direct bearing on your choice of angle grinder. The two most common disc sizes are 4.5” (115mm) and 9” (230mm). Grinders with larger discs are particularly well suited to heavy-duty applications, whereas those with smaller discs are ideal for finer work.

Do all discs fit all angle grinders?

Angle grinders discs are interchangeable, which means you can select the specific size of disc for your grinder and the specific type of disc for the type of material you are looking to cut or grind. There is a wide range of different types of discs available for an angle grinder.

How is the size grinder determined?

Many don’t understand that a grinder’s discs determines its size, not the length of the overall machine. Grinders with bigger wheel discs are longer than the smaller counterparts. However, this is because a bigger handle is necessary to control the wheel. For instance, a 4.5-inch angle grinder is the most common size.

Where should the guard be on an angle grinder?

Quote from the video:
Quote from Youtube video: The outer lip of the grinding guard should curl toward the wheel to better retain sparks hot metal particles and possible broken wheel fragments.

What is the most common angle grinder size?

4” and 4 ½”

The most commonly used sizes are the 4” and 4 ½”. These grinders typically have the capacity for wheel diameters of up to 7”, with particularly small versions having the capacity for 3” discs.

What are 3 different types of angle grinder discs?

  • Angle Grinder Wheel/Discs. The most apparent disc and probably the most popular one among different types of angle grinder discs is the grinding disc. …
  • Cut-off Discs. The second most used wheel for angle grinders is the cut-off disc. …
  • Flap Discs. …
  • Wire Wheels. …
  • Diamond Cutting Discs. …
  • Polishing Pads.
  • What are the different sizes of angle grinder?

    Angle grinders are typically available for grinding discs of the following sizes:

    • 4½ inch – 115mm.
    • 5 inch – 125mm.
    • 6 inch – 150mm.
    • 7 inch – 180mm.
    • 9 inch – 230mm.

    What are the different varieties of grinder disc?

    Different Wheels and Disc Types

    • Silicon Carbide Grinding Discs. These discs are purpose made for the shaping of metals. …
    • Cutoff Grinding Discs. …
    • Sanding Pads and Discs. …
    • Grinding Wheels and Discs. …
    • Wire Brush Wheels. …
    • Diamond Cutting Wheels and Discs. …
    • Aluminium Oxide Grinding Wheels. …
    • Flap Discs and Wheels.

    How many types of grinder discs are there?

    Here are seven types of angle grinder discs and their different uses. According to Handyman’s World: “Learning to use an angle grinder properly can take a fair bit of practice.

    Can you use a grinder without a guard?

    Personal protective gear, such as safety glasses and a face shield, and other PPE are often required as well. OSHA regulations require the use of guarding on angle grinders.

    How do you adjust a grinder guard?

    Quote from the video:
    Quote from Youtube video: You do have a screw so if you clamp it and it isn't tight. Enough. You can just adjust that screw. But you kind of just get it aligned right in that little groove that may be a little bit tight.

    How much of a grinding wheel should be covered by the guarding system?

    OSHA requires a maximum clearance of 1/4″ between the grinding wheel and the tongue guard. If a wheel breakage should occur, maintaining the proper distance will help to contain the wheel fragments and reduce the probability of an injury.

    How much of a gap should there be between the top guard and the wheel on a bench grinder?

    Because grinders run at such high RPM, wheels actually explode when they break, causing very serious injuries, blindness and even death. In addition, the distance between the grinding wheel and the adjustable tongue-guard — also known as a “spark arrestor” — must never exceed 1/4-inch.

    What causes grinding wheels to explode?

    Grinding operations generate tremendous amounts of heat. This heat causes expansion and if foreign materials are embedded in the stone then the differential rate of thermal expansion between the two materials can cause a wheel to shatter.

    Why is grain spacing important in grinding wheels?

    17) Why is grain spacing important in grinding wheels? Grain spacing determines the size of chip cavities and the number of cutting edges.

    What is grain size in grinding?

    The grain or grit size of your grinding wheel influences the material removal rate and the surface finish and the grain size varies from 8 to 600 (8 is coarse and 600 is very fine). The grinding wheel grain size controls the possible amount of depth of cut.

    What is the grinding ratio?

    Grinding ratio is defined as the volume of material removed from the work per unit volume of wheel wear. It is related with Young’s modulus, the elastic failure energy and the visco-elastic properties of bond.

    What is grain size in grinding wheel?

    Grain size

    A larger grain will cut freely, allowing fast cutting but poor surface finish. Ultra-fine grain sizes are for precision finish work. generally grain size of grinding wheel are 10-24(coarse),30-60(medium),80-200(fine) and 220-600(very fine).

    What does D mean on an abrasive wheel?


    First letter = abrasive material. A= Aluminum Oxide (usually metal) S- Silicone Carbine (usually masonry) C- Ceramic. D- Diamond.

    What is a green grinding wheel used for?

    Green Silicon Carbide for non-ferrous metals, tungsten carbide for sharpening carbide tools in tool rooms. Type 1 – Straight vitrified wheels used for tool sharpening and grinding. Commonly used in maintenance departments, tool & die shops and metal fabrication shops.