[Shop-talk] 1" hole through cinder block ?

[Nolan]

> Any suggestions for how to cut an approximately 1.25" diameter hole 
> through
> the block, with the least risk of breaking the whole thing in half ?


True cinderblocks and the like are quite soft, and a simple masonry bit 
spinning in a regular drill will go through it quite readily.  Now if it's a 
true cement block, those are quite a bit harder, and you are likely to find 
yourself needing an impact hammer.