An easy-to-use drilling jig for drilling straight/perpendicular holes that can be adapted exactly to your needs. The jig can be adjusted to 'fall' over the edge of a board. This jig is only usable for one drill diameter.
The easiest way to use it: place the jig over your drill hole, position the drill, set the jig down and flat to the wood without moving the drill point. The "cross" above the jig is for displaying markings and for removing sawdust.
Three examples of a drilling jig for 8 mm drill bits are included. The wing versions are intended for 18 mm boards.
Remember, this is a guide to help you, not a guarantee that you will drill straight holes.
See two other types of drill jigs I've made by following the links below:
Drill guide for five drill sizes. Drill guide for all drill sizes. The product was designed by
Coat