For future drilling and the lurkers who might be scared about drilling and doing what OP did,
https://www.amazon.com/Milescraft-5342-Drill-Stop-6-Piece/dp/B0055HPIWS
Milescraft 5342 6pc. Drill Stop Set - Includes 3/16, 1/4, 5/16, 3/8, 7/16, and 1/2-Inch https://www.amazon.com/dp/B0055HPIWS/ref=cm_sw_r_cp_api_i_5ibxFbA40W8TF
For less messy amazon links you can extract the part after "/dp/" in
and make it:
BEEP BOP
Plz send any recommendations via PM