Amazon has Black & Decker 79-368 Bi-Metal Door Lock Installation Kit for $28.45 + free shipping.
Save time and money by installing locks yourself in just three simple steps with this handy kit from Black & Decker. Compatible with all standard-size wood and metal doors with a width measuring between 1-3/8 and two inches, the 79-368 comes with a durable high carbon steel hole saw that drills clean face and latch bore holes quickly and easily. For added convenience, this kit features a stay-in-place guide (no additional drill holes needed to keep it from moving around as you work), and it can be used with any latch bore face plate set--either rectangular or round. But the best part of this set is how easy it is to use: just tighten the guide with one hand, drill holes, and attach the lock to the door.
Product Description
Installs locks in three easy steps. Works with all doors, wood or metal, 1-3/8" to 2-3/8", with both standard backsets, and with any latch bore face plate set, rectangular or round.
Black & Decker 79-368 Bi-Metal Door Lock Installation Kit $28.45 FS 
