bit holders for sockets and driver bits

Wall-mount holders for sockets and 1/4-inch hex-shank driver bits.

The holders for sockets have engraved lettering. The holders for the 1/4-inch hex-shank bits have pockets to hold label cards.

The OnShape document where all of these holders are defined is at:
https://cad.onshape.com/documents/9c4144bbcaf1bf9353ba543c/v/6143dd58548a0a39954e3f16/e/fc1c8c1116e776312381934f

The code that generates the label cards is at: https://github.com/neiljackson1984/bit_holder_labels.git

TO DO: generate label cards for all of the standard driver bits.

mount holes are for a #8 pan-head screw.
mount holes are spaced at a whole number of inches, on-center.
Insertable printed paper labels are 9 millimeter x 12 millimeter rectangular pieces of paper. The label pockets have retention lips along two opposite sides - the edge of the printed label cards fits under the retention lips to prevent the card from falling out.


These holders are intended to be mounted to a rectangular 1-inch