EINSTELLBARE DOPPELBOHREINHEIT.

摘要

An adjustable drillhead (l00) suitable for mounting on a dual bit drill gun or press is disclosed. The invention allows for variation of the spacing between two drill bits and is especially suited for use in drilling dual holes through a workpiece required for nutplates. Also disclosed are means to locate the drillhead relative to a specific location on a workpiece prior to drilling the dual holes.