Abstract: The present invention is a ball hitch connector for use with a conventional ball hitch socket. The ball hitch connector includes a spherical body having a polygonally shaped bore to receive a generally cylindrical stud, where the upper section of the stud has a polygonal shape complimentary to the bore of the spherical body. The stud attaches to a generally conical collar, by means of a latch pin through two bored holes, one located in the lower section of the stud and one located in the base of the collar. The stud and attached collar are insertable within a base plate. The base of the collar is polygonal in shape. The base plate is a ring which has an inner cavity of corresponding shape to the collar. The collar and attached stud are held in place by means of the complimentary configured base plate cavity. The stud is secured to the base plate by a fastening means such as a nut and washer.

Abstract: A mining drill mountable in a holder of a drilling machine. The drill includes an elongated shaft having an internal bore extending longitudinally therethrough. A cutting bit is mountable on one end of the shaft and includes a cutting tip mounted at one end thereof and a plurality of cutting teeth disposed about its periphery. A partial longitudinal bore is formed in the cutting bit and is alignable with the bore in the shaft. An aperture is formed in the cutting bit in communication with the bore in the cutting bit to direct debris through the aperture into the aligned bores in the cutting bit and shaft. A collar is mounted on the shaft and has a downward-extending inclined top surface. At least one aperture is formed in the shaft adjacent to the collar in communication with the interior bore in the shaft to direct debris into the bore. A cutting edge is formed on the bottom of the collar.

Abstract: A machining and augering bit, particularly adapted for earth cutting, has a dual-headed tool holder. Each head receives a work piece which carries a rotatable tool bit. The head includes spaced apart first and second portions, the interior surfaces of which are opposed and which define a work-piece receiving area. A work-piece is received in the area and is utilized to mount to the tool a carbided throw-away cutting bit. With the cutting bit mounted on the work-piece which is seated in the area one of the portions shields a portion of the cutting bit to prevent its exposure to flying debris, as well as the area to be drilled.