Irwin 3111001 Wood Door Lock Installation KitsIrwin 3111001 Wood Door Lock Installation Kits Features: Carbon hole saws for wood doors Fits all interior and exterior doors Self centering jig fits all common door widths Adjustable for both 2-3/8" and 2-3/4" backsets Includes bolt plate template and router bit Hinge plate template included Complete installation in 3 easy stepsIrwin 3111001 Wood Door Lock Installation Kits Specifications: Kits includes: Double sided jig, (2) Carbon hole saws, 3/8" Mandrel, Bolt plate template, Custom router bit, Hinge plate template