It is New Tool Tuesday! - New Tools Other Tilers Have Bought Recently

[Cranbrook]

Yeah

Some large diameter hole saws im experimenting with running at a slightly slower speed as peripheral speed at 12000 rpm with large drill is properly fast with a large diameter

Yeah I just had a couple of 35mm holes to do and I found it was better using the grinder on a lower speed.. Cleaner finish

 

[One Day]

Some large diameter hole saws im experimenting with running at a slightly slower speed as peripheral speed at 12000 rpm with large drill is properly fast with a large diameter

Eh? i thought a larger diameter would rotate more slowly than a smaller diameter?
do you mean its better to slow them down so they're easier to handle?

 

[Flintstone]

The larger the diameter the faster it spins at the perimeter. Like bike gearing. Probably why larger grinders are less rpm.

I haven’t used the multi tool yet. It was around £125 I think with the box and some bits. Can be them for about £100 bare. That’s the reason I got it, for convenience.

 

[Spare Tool]

12000 rpm is 12000 rpm no matter how big the blade is 😉

 

[Italy]

......

 

[One Day]

Ok, my stupid! 😕

 

[Dumbo]

12000 rpm is 12000 rpm no matter how big the blade is 😉

The rpm is the same but the larger the disc the higher the peripheral speed .

 

[Flintstone]

A point on the outer perimeter has further to travel to do one turn so it has to move faster

 

[Waluigi]

I understand what you’re saying @Localtiler and agree with you.

RPM is RPM but the speed that the actual outer part is moving is faster. The bit that does the cutting is moving faster against the tile than if it were a smaller hole saw.

 

[WetSaw]

It's all about tangential speed..