Abstract: A tool for accessing an optical fiber within a buffer tube comprising a buffer tube guide having a groove for insertion of a buffer tube and a blade movable from a first position away from the buffer tube guide to a second position against the buffer tube guide. The tool may include a lower body section and an upper body section movable toward and away from the lower body section, the blade attached to the upper body section and the buffer tube guide attached to the lowered body section wherein the blade contacts the buffer tube when the upper body section is toward the lower body section. The buffer tube guide may be removably securable to the lower body section and the buffer tube guide is replaceable with at least one different sized buffer tube guide for insertion of at least one different sized buffer tube.