Highly customizable snug box (lidded) for drill bits

A snug box for drill bits. Customisable size, number & layout of compartments, tunable cutout for picking up drills etc.

A lidded box for drills, initially designed to be as small as possible and fit each drill in a separate compartment. After surprisingly little effort the design application has been broadened to generate drill boxes with customisable number and length of compartments, which width is a given multiplication of drill diameters.

Note that not all customisation can be done in customizer interface, for the latter does not allow customising arrays of arbitrary size. So start by changing the `drills` and `lengths` to suit your needs, e.g.,
`drills = [ 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0 ];`
`lengths = [ 49, 57, 61, 70, 75, 80, 86 ];`
defines seven compartments that should fit drills of provided diameter and length.
Only then head to the customizer interface, where you can tune how many drills should sit in each compartment, how longer/broader/taller the c