Tray for Mac tools standard hard handle pick set. This should fit any standard hard handled pick set from one of the tool trucks such as snap on, mac or matco. It will not fit the pittsburgh/ harbor freight set though, the handles are wider (theres several versions for that already on site).

Any other pic set with fatter handles should be able to be accommodated by scaling the width only in slicer by 10-20%. The tool truck brands have longer shanks than Harbor Freight or other imported brands seem to. That is a shadow at bottom of pic - this tray is a full 360 contained/wall tray.