Each bit I used did only 3 holes before not working

A bench vice is a must but the holes are perfect

I didn’t have any issues with them and cut nice clean holes in the tile.

First of all it’s not centered so it was impossible to cut a hole and not worth the money I paid

This was the perfect tool to cut a perfect 1" hole in my tiled kitchen counter

Find a more reliable hole saw

worth the one hole i needed to make.