Quote:
Originally Posted by ShelledPants
The link you posted looks like for wood working? For center drilling a pilot hole, then cutting a larger hole using the pilot as a guide?
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Most likely for tiles, the grit looks very coarse though.
The drill is for hard materials, when it drills it turns to powder, thus the lack of any flutes
The hole saws for wood have large teeth and also wobble back and forth like crazy (on purpose) as a means to prevent you from clogging the teeth up immediately upon starting the cut. The wobble also makes them incredibly useless as boring tools, and the design of holesaws makes them impossible to start holes by hand without a pilot.