Locksmith door jig - Adjustable width self centering 2 3/8" and 2 3/4" backset

Each part is easy to replace and relatively fast to print. The entire thing only uses ~60g of filament. A bunch of other cheap jigs are plastic but you can't replace parts that wear out from touching the drill bit. The center gear as well as each of the adapter legs can quickly and easily be switched if they wear out. 

Has 2 holes to screw into the edge of the door. Holes are 3mm in size so use some small screws. Can use 2 rubberbands to help keep the legs against the front and back of the door but not necessary. 

Supports: No

Material: Tested in PETG but PLA should be fine

Strength: I used 3 walls and top/bottom layers

Print:

1x BasePlate

1x Gear

2x Rack

2x Adapter

BOM: 

2x small screws

OR

2x rubberbands