So a 4.5-inch disc is best for such a grinder while a 7-inch angle grinder works best with a 7-inch disc and so on. The best angle grinder size for thick materials such as concrete and stone are those with 7-inch discs and above. Once you understand these factors listed, you are on your way to choosing the best angle grinder for your needs that match the grinder size required.
You also almost always need two hands on the grinder, everything you grind will;l have to be clamped down. I don’t weld really heavy material though, someone grinding on 2 inch plate all day will NEED the bigger grinder practically speaking. I love the dewalt rat tail 4.5″ – 6″ inch grinders myself.
Two with regular lock-on switches and one with the paddle switch. The paddle switch sees brush duty exclusively, as when the brush catches it shuts off with a simple hand release. This is especially important with lock-on swithes, so the “Off” switch is in a convenient location for use, under the thumb.
The size of the angle grinder you buy will depend on the size of the job you have. Typically, the most common size of angle grinder is 4.5 inches, meaning it uses discs that are 4.5 inches in diameter. Even though a 4.5-inch grinder is faster than a 6-inch grinder, the 6-inch grinder using a 13 amp motor will be just as fast, if not faster, than the 4.5-inch grinder with a 7 amp motor.
We’ll decide what’s the right angle grinder size for you: we’ll go through a series of common activities and determine which is the right size for them. To get an idea of the specs of this size of angle grinders, let’s take as an example the Makita GA4030K 4″ Angle Grinder. If you need to cut through paving slabs, you need to consider a couple of things before choosing the correct angle grinder size for the job.
angle grinder 7 vs 4.5 Related Question:
Which angle grinder size is best?
A smaller 115mm angle grinder means a more versatile power tool. With a smaller cutting disc you get a greater level of precision, so if you’re wanting to be able to trim tiles to shape, sharpen blades, or cut and grind more intricate stone and metalwork projects, we’d suggest a 115mm grinder.
What is a 7-inch angle grinder used for?
Angle grinders are versatile tools that can grind metal and cut tile, stucco and pavers, rout out mortar, plus they can sand, polish and sharpen. Learn to use an angle grinder to cut tile, mortar and pavers; make quick work of rust and loose paint removal; sharpen blades and cut or grind steel.
Does angle grinder size matter?
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.
Is a bigger angle grinder better?
Disc diameter – angle grinders with larger diameters take bigger discs that make deeper cuts. Wattage – higher wattage gives more power to cut through denser materials. Speed – multiple speeds give more control for precise work.
How deep does a 115mm angle grinder cut?
While 115mm angle grinders offer a maximum cutting depth of only 30 mm, they are precise, easy to handle and lighter than larger versions.
What is the most common size grinder?
For instance, a 4.5-inch angle grinder is the most common size. It utilizes wheel discs that are 4.5 inches in diameter. A 7-inch grinder uses a 7-inch disc, and so on.
Can angle grinder cut steel?
So can an angle grinder cut metal or even dense steel? Yes, it most definitely can. At the end of the day, using an angle grinder to cut metal can be highly effective and extremely safe as long as you have the right equipment and safety tools with you.
Can I use bigger disc on angle grinder?
Fitting a 14 inch (356 mm) cut-off disc to a 9 inch (230 mm) angle grinder will increase the edge speed excessively to at least 120 m/s (430 kmph). The photograph below shows an angle grinder with the wrong size cutting disc fitted and the guard removed.
What size are angle grinder discs?
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.
How powerful an angle grinder do I need?
Speed and performance of angle grinders for polishing: 500 watts. for grinding: 1,000 watts. for cutting through simple materials: 1,500 watts. for cutting through strong metals: 2,500 watts.
How do I choose an angle grinder disc?
depends on the type, shape and thickness of the steel that needs to be cut. For standard everyday jobs on either stainless or mild steel using an angle grinder, choose a 1mm or 1.6mm thickness in your disc. For projects that involve thin metal such as sheet metal, choose a 1.0mm or 0.8mm thinner cutting disc.
What is an angle grinder best used for?
An angle grinder is a handheld power tool that can be used for a variety of metal fabrication jobs that include cutting, grinding, deburring, finishing and polishing.
Will an angle grinder cut slabs?
Chalk or a pencil. A workbench. Four C-clamps (to secure the slab in place) Power saw or angle grinder with a diamond-tipped blade made specifically for stone or masonry (this is important as blades made for wood will become dull almost immediately)
Can an angle grinder cut through concrete?
Concrete cutting is a common task at the construction area, such as cutting concrete floor, concrete wall, concrete slabs and concrete pavers. Although the various concrete cutting saw is available, an angle grinder is the most convenient tool for small concrete cutting work.
Can you use a grinder on concrete?
An angle grinder can be used to level, smooth and polish concrete by grinding it down. They can also be used to remove paint and floor adhesives. To grind concrete with a angle grinder you need a diamond cup wheel, a dust shroud attachment, and a vacuum cleaner.
