Mining drill

A mine drill for aiding the collection of detritus during drilling comprising a drive body being cylindrically shaped about an axis of rotation and having an axial passage for the flow detritus, a bit mounted at the forward end of said drive body for movement about said axis of rotation, said bit comprising a body portion including a pair of support lands projecting therefrom in the axial direction and an elongated insert having forwardly projecting cutting edges and a base surface secured to said body portion, said base surface lying in a plane substantially normal to the axis of rotation, each support land being offset said axis of rotation and secured to respective opposite sides of said insert whereby during rotation of said bit leading insert surfaces are mounted to respective support lands, said insert having end portions extending in a radial direction outwardly of said body portion and said drive body, said drive body having a pair of forwardly projecting flanges forming diametrically opposed apertures, each aperture receiving a respective end portion, each flange extending forwardly of said plane and spaced from respective opposite sides of said insert, a pair of passages adapted for the conveyance of detritus during drilling to said axial passage, each passage being formed in proximity to a respective cutting edge by a respective leading insert surface and a respective flange extending forwardly of said plane.