Blu-Mol® Professional Bi-Metal Door Lock Installation Kit makes easy work of installing a door lock on most wood or metal doors. 3 easy steps: Position, Bore, and Assemble. Adjusts to 1-3/8″ and 1-3/4″ door thickness. Backsets adjust to 2-3/8″ and 2-3/4″.

Includes: 1″ Hole Saw, 2-1/8″ Hole Saw, Guide, Assembled mandrel, Mandrel adapter.