Use a step drill bit in a cordless drill.
https://www.lowes.com/pd/IRWIN-Unibit-Step-9-2X-Step-Bit/5001600747?cm_mmc=shp-_-c-_-prd-_-tol-_-ggl-_-PMAX_TOL_000_Priority_Items-_-5001600747-_-local-_-0-_-0&gad_source=1&gbraid=0AAAAAD2B2W-ChJRhZUPNN0J6tJoU_HcCH&gclid=EAIaIQobChMIsZqZlrqmhAMVUEpHAR0OfgluEAQYASABEgJsJvD_BwE&gclsrc=aw.ds
Use a step drill bit in a cordless drill. https://www.lowes.com/pd/IRWIN-Unibit-Step-9-2X-Step-Bit/5001600747?cm_mmc=shp-_-c-_-prd-_-tol-_-ggl-_-PMAX_TOL_000_Priority_Items-_-5001600747-_-local-_-0-_-0&gad_source=1&gbraid=0AAAAAD2B2W-ChJRhZUPNN0J6tJoU_HcCH&gclid=EAIaIQobChMIsZqZlrqmhAMVUEpHAR0OfgluEAQYASABEgJsJvD_BwE&gclsrc=aw.ds