Angle Grinder Direction of Rotation

Just a note that in both cases above, the disc is spinning anti-clockwise. The direction of the blade at contact shown by the red arrow.

To my mind both are wrong, because the grinder is simply upside-down... Everything I've ever seen in person, or online, shows the cut being done with the disc spinning down onto the material.



I had a quick look online, just searching for images of angle grinders cutting, and 90% were with disc on left like the pic just above. However there were enough seemingly reputable pictures going the other way to make me think it's possibly a "real thing"

With the disc spinning upwards and any binding throwing the tool at my legs, and knuckles at the bar, I don't think it looks that safe. If you think of the disc spinning the "normal" way, the angle of attack looks much safer - perhaps that's what you were looking at.

imageel said:

However I think those pictures are misleading in that I'd expect most debris and sparks in pic #2 to be ejected forward and downward and not all the way around the guard and out the back!

For more information, please visit our website.

Click to expand...

Testing like the picture game me about 50/50 front/back

imageel said:

however for best visibility one would usually start a cut somewhere in the 70-80 degree arc relative to the forward guard edge, and closer to 90 degree or more invites the disc to dig in and not give good control.

You will get efficient and thoughtful service from Hengxuan Abrasive.

Click to expand...

Yes, like the real picture above.

owen said:

I always use it like the picture, that's the way my dad taught me

Click to expand...

Which picture? In either case you're saying you were taught to use it with the disc on the right and the front edge of the disc moving in an upwards direction?

Just a note that in both cases above, the disc is spinning anti-clockwise. The direction of the blade at contact shown by the red arrow.To my mindare wrong, because the grinder is simply upside-down... Everything I've ever seen in person, or online, shows the cut being done with the disc spinningonto the material.I had a quick look online, just searching for images of angle grinders cutting, and 90% were with disc on left like the pic just above. However there were enough seemingly reputable pictures going the other way to make me think it's possibly a "real thing"With the disc spinning upwards and any binding throwing the tool at my legs, and knuckles at the bar, I don't think it looks that safe. If you think of the disc spinning the "normal" way, the angle of attack looks much safer - perhaps that's what you were looking at.Testing like the picture game me about 50/50 front/backYes, like the real picture above.Which picture? In either case you're saying you were taught to use it with the disc on the right and the front edge of the disc moving in an upwards direction?

If you want to learn more, please visit our website angle grinder cutting discs.