There are many situations were ADA regulations require lever locks to be installed (where knob sets were) and this is the jig for you. A-1's rugged Tool uses hardened steel guide plates and covers the widest range of lockset series possible.
It works equally well on metal or wood doors when using the proper frill bits and will also locate the anchor plate holes. The BUL3 comes equipped to handle door widths from 1-1/8" to 2" and will work any back set from 2-3/4" to 5" and has a built-in squaring device to ensure mounting hole accuracy.
This double sided jig allows you to drill from both sides of the door while drill guides rest directly against the surface of the door to minimize splintering.