Review on Precision Cutting with Steel Dragon Tools Diamond Concrete Cutting Tools by Polo Bradley

Definitely get one of these: https://amzn.com/B01F4IQOE8 You'll also need a decent (say 9+ amp) 1/2" power drill. And the one that drills at high speed - for example 3000-4000 rpm. DO NOT use a percussion drill and if you do this make sure the percussion is disabled. Drill dry at maximum speed. When I got a decent drill it worked fine, there are still diamonds on the drill. it will be used for another day!