How to Change an Angle Grinder Blade

Advertiser Disclosure: Tool Inspector earns commissions from qualifying purchases.

Angle grinder blades are multi-purpose instruments that can grind, cut, or sand through various materials in the construction industry and at home.

 

Many people often wonder “how to change an angle grinder blade”? Since it is normal for the blade to wear out after continuous use, you may want to change it.

 

Depending on your material, angle grinder blades come in multiple shapes, sizes, and materials. In construction, concrete, wood, and metal are the most popular materials.

 

To prevent personal harm, always use the correct blade and replace it when it becomes worn out.

 

Different Kinds of Disks for Your Grinder

Because of its adaptability may fit the grinder with several types of grinding discs, such as fiber or flap discs. Each of them will use a unique method for treating the surface.

 

The thickness of cutting discs ranges from 0.8 to 3.2 mm. Their sole purpose is to cut, punch, and notch various materials. Using them for grinding is not recommended.

 

Cutting discs can be classified based on the design of the cutting surface. Flat, segmented, so-called “turbo discs” will be among the available options.

 

Grinding discs with 6 to 6.4 mm are among the sturdier options. To sustain heavy stresses applied to their forehead, these discs feature a significantly more robust surface.

 

When using grinding discs, it is necessary to operate at an angle of 20 to 30 degrees to the plane of the treated material.

 

The most common way to categorize grinding wheels is based on the materials they are best suited to. As a result, we can distinguish between stone, steel, and metal discs.

 

Angle grinders can also be equipped with diamond discs, which are still another disc form. Hard construction materials such as paving stones, blocks, and bricks are no match for its blade’s strength and abrasion resistance.

 

How Do I Replace the Blade on an Angle Grinder?

Even while it may appear to be a challenging task to replace the blade or disc on your angle grinder, it isn’t. Here are the steps to help you understand how to change the angle grinder blade.

 

Anybody can perform a complete blade replacement in minutes or less with some essential tools and instruction. Now that you want to know how to change an angle grinder blade, let’s get started.

 

Step 1: Unplug the Power Source

As a safety precaution, you must first unplug the angle grinder from all power sources before you may replace its blade.

 

You should never do any maintenance on a power tool while plugging it into the wall outlet. If you try to replace the blade while the angle grinder is on, it might start up and cause significant injury.

 

Corded angle grinders should be unplugged from a power source, and cordless models should have their battery packs removed.

 

Step 2: Remove the Blade Using Factory Spanners

Factory spanners, or special wrenches built for this specific task, are needed now, so don’t delay. One wrench is a fork, and the other is an essential wrench.

 

These tools should be readily available to you to make your life simpler. Because of this, you must locate the two holes located between the angle grinder’s blade and its motor.

 

You should fill these two holes with a wrench that resembles a pronged fork. The bolt at the bottom of the disc can be secured using the normal-looking wrench (that’s how the blade is kept in place just so that it may not move while the nut is loosened). Where the disc is attached, you’ll see a little arrow. Turn the pronged wrench in the opposite way of this arrow while holding the blade’s bolt in place with the regular wrench.

 

Afterward, crank the nut to get it loose and unscrew it.

 

3rd Step: Installing a New Blade

Mounting the replacement blade is the last step, just like the old edge was removed but in the reverse sequence. You must remove the old blade and install a new one on the driving bolt.

 

You’ll first need a regular wrench to hold down the bolt, and then you’ll need a pronged wrench to get it in and out of the two holes we talked about before.

 

Then, with one twist still holding the nut in place, move the pronged wrench in the right direction until the blade is firmly locked into place.

 

How Can You Remove the Disk from Your Angle Grinder Without Using Any Tool?

You Should Heat the Angle Grinder’s Nut

You can use a piece of autogenous welding equipment or gas burner to heat the angle grinder nut so that you can remove it by hand. To avoid getting burned, remove the flange while keeping your gloves on.

 

It’s the riskiest of the three options. It is possible to overheat the oil and bearings in an angle grinder’s gearbox.

 

Tapping the Disc Using a Chisel to Remove the Material

You should wait for at least 15 minutes after applying WD-40 fluid to the spindle shaft before performing the disc replacement.

 

Then, using a thin chisel, tap the whole surface of the flange nut’s hole using a metal hammer at an angle. The nut will eventually come loose, and it will be able to remove by hand.

 

Make Your Own Angle Grinder Key

Of course, you’ll need a long nail for this project. For the “tool” stands to fit into the flange holes, it needs to be bent in that fashion.

 

Rotate the construction in the direction of the circle’s movement by inserting any metal bar piece between the posts of your nail and grabbing it with both hands.

 

Press and hold the lock button at this point. A hacksaw, vice, and hammer are necessary, but the procedure is risk-free.

 

Our Final Thoughts

Assembling and disassembling an angle grinder’s disc is not a difficult task, but it does necessitate attention when removing the old disc and reinstalling the new one.

 

The most important thing to remember while changing an angle grinder disc always works with the grinder switched off. If your disc is too tiny, damaged, or twisted, it should be replaced.

 

We hope that now you know how to change angle grinder grade. You should install it in the correct direction, and its tightness should be checked and that of the housing.

 

Ventilate the area where you work, and use protective glasses and earplugs if necessary.