How to use a cutting wheel? Following are important tips for using cut-off wheels:

· Use proper protective equipment such as a PPE kit, safety glasses, face shield, gloves, and a dust mask.

· Before using cutting wheels, examine any damage or crack.

· Check cutting machine speed and do not exceed above maximum rotation speed.

· Install correct flanges on portable cut-off wheels.

· At the start, Run the wheel without any workpiece for a minute.

· Cover the machine wheels from both ends.

· Cut-off wheels are ideally used only for cutting purposes (not for grinding and deburring).

· Make 90 degrees angle between the workpiece and the cutting wheel.

· Keep body parts and clothing away from the cutting wheel.

· Do not use a damaged wheel guard, replace it with a new one as soon as possible.

· Use the right method of handling and storage of cut-off wheels.

· Read manual instructions before using cut-off wheels.

· Before you buy flap discs, you should know about the different types of flap discs. The two main types of flap discs are Type 27 and Type 29.

· Type 27 vs. Type 29 Flap Discs

· The differences between the Type 27 and Type 29 flap discs are in the angle. The type 27 disc has a flat face whereas the type 29 flap disc has a conical shape with flaps angled towards the edges. The difference is subtle, but important since they are designed for different uses. That is why you should carefully consider the work being performed before choosing which one is right for the job.

The Type 27 is a flat disc and is best used for finishing applications where the angle of use will be from 0 to 15 degrees. You can also do some mild grinding with the Type 2

· The size of the abrasive grain determines the quality of finish. A higher the grit number means finer abrasive grains and hence smoother finish.

Types of Sanding Disc

There are mainly two types of sanding discs. 

1.Adhesive-backed disc

Adhesive-backed sanding discs are attached to the sander with glue on the back. They are easy to use & easy to change. Still, they are being used less frequently as hoop & loop disc provides more advantage.

2.Hook & Loop disc

These are very similar to velcro. Hook & loop are more popular nowadays & they’ve replaced adhesive-backed discs. Although they are a bit expensive than the other sanding discs. But the price is worth it. They provide several advantages over the older sandpapers. These are easy to change, flexible, sustainable.

Type of Sanding Grits

1.Coarse Grit

Coarse grit is normally used at the beginning of a project to remove a large amount of material.

2.Fine Grit.

Fine grits give a smooth finish to the project. It is also used on sanding the edges of a surface.