Abstract: A boroscope having a flexible fiber optic bundle communicating from inside to outside a housing. The bundle has a proximal end inside the housing viewable by viewing optics and illuminable by a light source in the housing. The fiber optic bundle extends to a distal end thereof outside the housing. An external sheath is placeable over the fiber optic bundle and is attachable to a fixture on the housing. The sheath in a preferred form is a tightly coiled wire in goose neck form which is bendable but retains its bent shape for enabling aiming of the distal end of the fiber optic bundle at a remote target.