For a set of cheap mason bits these worked great

the small bits are much cheaper to buy...abuse the smaller bits all day if you are in a hurry to drill holes in concrete...or, like i find helpful, grab a piece of rebar smaller in diameter than the hole you are trying to drill...sharpen one end into a chisel typd angle

Great bits!

I used these drill bits on ceramic tile and they work great

the bits work great and are well worth the money

Great bits drills clean and fast

good standard bits

Some nice inexpensive dill bits

Great bits for drilling into rock

These bits work

These bits worked very well drilling into a solid granite rock

These bits worked great and cut through the file in less than 5 seconds.

Good strong bits.