Review on 🚽 WingIts WA2005PCS Apache200 5 Piece Bathroom Hardware Set by Erik Sanders

I've tried them on porcelain stoneware and they didn't work at all. The "wings" broke off and as I drilled further they got worse. I suspect they might work on ceramic tile, but don't try them on porcelain. I have to admit that the seller kindly took the bits back. I didn't have shipping but it was a lot less than the cost of a set of bits. Use a diamond hole saw for porcelain stoneware. I bought a saw from Revain and it worked perfectly and made all the remaining holes needed for 7 handrails with multiple holes for each.