How to sand down concrete?!?

[Billbill84]

Hi guys, quick question. I have an area at my garage door / driveway seam that's about 1/8" higher on the driveway side, than the edge of the garage door floor. I know 1/8'isnt very high but it's still enough to make water run back towards the garage. Is there a way to sand down the edge of the driveway slab the help with drainage and run off? I was thinking i could just take a file to that edge and make a shallow cut that would be level orthe garage floor but was worried this could cause potential weak spots and lead to cracking later in life. Or if there's a way I could sand down the driveway slab edge so water will run away from garage floor. What ?!?!?

 

[Snoonyb]

Any of these will do the job;https://www.homedepot.com/s/concrete%20grinding%20wheel?NCNI-5

 

[Billbill84]

Any of these will do the job;https://www.homedepot.com/s/concrete%20grinding%20wheel?NCNI-5

Ok thanks!

 

[thebuilder20]

Concrete grinder with a strong vacuum.