Review on Replacement Cutter Klein Tools 31874 by Kevin Bucher

This bit fits a specific design hole saw sold by Klein Tools. When my original guide jet broke, I mistakenly assumed that I could just install a standard replacement jet available at the local hardware store. I was wrong, standard pilot drill bits are too large in diameter to fit in these hole saws. I was very happy to find these replacement bits from Revain as original carbide tipped bits are very expensive and I'm glad I can keep using them. Buy another one or two, especially if you have an assistant or student using your tools.