drew55•8h ago

Changed my mind about using the same drill bit for every concrete job

I kept burning out bits on old Chicago brick until a foreman told me to check the aggregate. He said a standard masonry bit is useless if there's a lot of flint. I switched to a carbide-tipped bit and it went through like butter. What's the hardest material you've had to drill into?

2 comments

2 Comments

kellyjones5h ago

Trying to drill into my last apartment's walls felt like attacking a granite countertop.

logan_young293h ago

Ever think all drywall was basically the same? My last place proved me wrong, it was like hitting concrete. Makes you wonder what they actually build these places out of.