Angle Grinder Spindle Size

[Alan2021]

Sorry for asking a basic question, but I am looking to buy my first angle grinder and I notice that most angle grinders I look at specify "M14 Spindle Thread" under disk fitting, but most disks I see available say "standard bore".

Are these the same thing, or are "standard bore" disks compatible with "M14" grinders? I guess the different terminology means they are not the same thing.

I want to make sure that disks will be readily available before choosing a grinder, and I want to make sure I don't waste money buying disks that won't fit whatever grinder I buy.

I am looking at 4.5" disc size.

Any guidance will be welcome!

 

[Burnerman]

For a 4 1/2 disc, the arbor size is standardised at 22.2mm. Less for a 4" machine which are rare now.
John

 

[Tigercubrider]

M14 is a thread size. Not a spindle size
This means that if you buy a wire brush attachment it screws on.

 

[Harry Bloomfield]

Sorry for asking a basic question, but I am looking to buy my first angle grinder and I notice that most angle grinders I look at specify "M14 Spindle Thread" under disk fitting, but most disks I see available say "standard bore".

Are these the same thing, or are "standard bore" disks compatible with "M14" grinders? I guess the different terminology means they are not the same thing.

I want to make sure that disks will be readily available before choosing a grinder, and I want to make sure I don't waste money buying disks that won't fit whatever grinder I buy.

I am looking at 4.5" disc size.

Any guidance will be welcome!

You buy the disks, by their outside diameter in mm. Common sizes are 100mm and 125mm, the bore of which is standard.

 

[Burnerman]

The bore size for 100mm discs used to be 16mm, unless its different now.
John

 

[Alan2021]

Thanks for all your replies.
I have learned a lot!
I think I know what to buy now