Using a Cheap Amazon Concreate Hole Saw

Diamond Core Drill Bits 2-1/4 Inch
https://amzn.to/3IsMjU3
Core Drill Bit Adapter 5/8"-11 Thread Male to SDS Plus Shank
https://amzn.to/3nJmZ49
Core Bits-5/8"-11 To 3/8" Triangle Shank
https://amzn.to/3tMeQjo
DEWALT D25313K 1-Inch SDS L-Shape 3 Mode Hammer
https://amzn.to/3rAATH0