_:ne58f8b4a642d47d58b935b6b5f76510cxb13
<http://schema.org/reviewBody>
"This is a beautifully crafted hole cutter.  Unlike most hole saws, this has carbide teeth.  In my limited experience with it, this results in significantly cleaner cuts with less chatter and almost no burr on the exit side of the cut.  It is made for metal, so will only cut to a maximum depth of just under 1/2\" (.425\" to be precise).  It doesn't replace the hole saws used for wood which can cut up to 2\" depth of cut.  The package includes an RPM guide, but it is printed VERY small.  For maximum tool life, these speed guidelines should be followed as closely as possible.  The cutter includes a hex key for the pilot bit.  The cutter also includes a spring around the pilot bit which does a surprisingly good job of keeping the inner piece from getting jammed inside the cutter, but does tend to pick up stray material from the pilot cut.  The cutting edges are angled slightly towards the inside so that the hole is clean and the center piece which is cut out still has a small amount of cutting 'swarf' attached to it (see the picture)."
<https://www.homedepot.com/p/Milwaukee-1-1-2-in-Carbide-Hole-Cutter-1-Pack-49-57-8627/316866847>