The file 'Lucky Drill, 2mm @ 2.5mm Grid 3D Printer Model' is (stl) file type, size is 922.0KB.
The tool is intend to give an idea where to drill.
The holes have all 2.1 mm diameter. The distance is always 2.5 mm.
As example, you want to drill a few holes with 1 cm distance, just count four holes.
The two millimeter hole you frill then bigger as you need it.
One extra hole indicates the middle of the tool.
Lucky_Drill_2.2mm__v1.0.stl | 5.2MB |