832 567 referred to hereinabove adjacent to the upper end of the device 1 but spaced downwardly therefrom is a pair of mounting wings 6 and 7 having pivot pins 8 and 9 extending therethrough pivotally connecting arms 10 and 11 thereto arms 10 and 11 are connected to a dust collection device generally indicated at 12 actually as will be hereinafter described the members 11 and 10 consist of an inner wall 13 of the collection device the collection device 12 consists of two symmetrically positioned members consisting of an outer wall 14 and an inner wall 13 that extends upwardly to form a cup member the inner wall 13 extends at an approximate 45 u00b0 angle through the cup member and forms an opening 16 at the central portion thereof to receive the drill rod not shown the bottom wall 17 of the cup member 12 is provided with an opening 15 which is connected to a nipple 21 that is also connected to a hose 22 by clamp 23 the hose 22 is connected to a y member not shown which is in turn connected to a single hose which conducts air to the bottom portion of the member 12 to provide a suction or negative pressure therein each half of the mechanism.