Plug cutter

A plug cutter comprising a shank for powered axial rotation, and a bit extending coaxially from said shank, said bit including a generally cylindrical wall having an open end remote from said shank, said wall tapering externally in the direction away from said remote end and tapering internally in the direction toward said remote end, said wall having a side opening spaced from said remote end and extending at least 180.degree. about said wall, said wall having a longitudinally disposed through slot extending from said side opening and opening through said remote wall end, and an end surface on said remote wall end intersecting with a one side of said slot in an acute angle to define a cutting edge, said end surface being bevelled and extending entirely across the thickness of said wall, said end surface extending from said cutting edge sufficiently to afford relief and thence longitudinally outwardly to a predetermined longitudinal distance inwardly from said cutting edge, for depth control of cut.