is there any kind of warranty on the drill master 4 1//2 " angle grinder. this is my 2nd one the won't turn off. switch doesn;t work.

No

They usually offer a 90 day store warranty on most electrical tools or you can purchase an extended warranty. I have never had issues with their warranty policy.

You can buy a 2 year warranty

Depends on how old it is and if you bought the extended warranty. When on sale they are so cheap you can either deal with it,replace it, or there is a repair shop on I believe it's landover a block off of spring Hill drive.