Abstract: A guide apparatus for drilling oblique holes comprises a fixture for supporting a wood stock at an adjustable angle to a reference surface, and a guide assembly for positioning a drill bit attached to a drill driving mechanism over the end of the wood stock and for guiding the reciprocation of the drill bit to enable the drill bit to enter the surface of the wood stock adjacent the end obliquely and to pass out of the end to form a hole for receiving a screw. The guide assembly is adjustable to vary the maximum travel of the drill bit towards the wood stock.