Masonry bit is tungsten carbide tipped so very durable when drilling into cylinder. Drill towards the bottom of the keyhole to remove the pins, but snapping the cylinder is alot easier and quicker. Refer to my answer on your previous question. Ed.
Drill a barrel using massinry drill bit first then use hss drill
Only drill the barrel where the key goes , the reason to use a masonary drill is so it doesent jam and will drill out without snapping or jamming , drill the stuck screw out with a hss drill
Nick shares his story of finding local tradespeople in his new area.
