Unlike cheap plastic components that break or quickly wear out, our Adjustable Drill Guide are sturdy and tough, laser engraved rulers fade with time. Fast installations, Easy to setup for any length and it provides repeatability: if you have done the left door, just flip it over and it's already easy setup for the right door This wood drilling template tool prevents costly mistakes and perfect installation of hardware every time.This hardware jig tool is a large time saver in any case. The edges of all rulers and sliding drill guides are upgraded by chamfer, more smooth, protect your hands and furniture , . Product name:Punch positioner Scope of application:carpentry Application scenario:Drawer positioning punch :Woodworking Colour:B:Blue Material:Aluminum Alloy Package Contents: 1 * punch positioner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.