Guide apparatus for drilling oblique holes

A holding apparatus for holding a workpiece in angular relation to a drill bit attached to a driving mechanism for drilling an oblique hole in a workpiece, the apparatus comprising:

• holding means consisting of a base member for mounting on a reference surface and an upstanding tiltable table attached to the base member, said table comprising a flat portion and an outwardly projecting foot portion forming a generally L-shaped support surface, said table comprising means for supporting a workpiece in said L-shaped surface to allow drilling of an oblique hole through a surface and adjacent end face of the workpiece, said table having a centrally located clearance hole for permitting passage of a drill bit through an end edge of a workpiece supported on said foot portion;
• a stationary guide assembly for positioning a drill bit over said foot portion, said guide assembly comprising a pair of spaced, separate feet for engagement on opposite sides of said base member, releasable securing means for releasably securing said feet to said base member, each foot having an upstanding support post projecting upwardly from it, and a guide member extending between said support posts for positioning above said foot portion, said guide member having a guide bore aligned with said clearance hole for slidably receiving a drill bit attached to a drill driving mechanism for guided reciprocation of the drill bit towards and away from the workpiece, an upper surface comprising stop means for engaging by a chuck from which the drill projects to limit maximum travel of said drill bit through said guide bore, connecting means at opposite ends for slidably engaging said support posts, and releasable locking means for locking said guide member at a selected height on said support posts.