a plastic canister for storing and shipping drill bits , especially roller cone drill bit , has a pin - holder built into the lid of the canister for ease of field dressing the bit . the lid and body of the container are slip fit to one another and indexed to each other for positive positioning in their relationship . safety features include the use of a conductive plastic polymer , a non - rolling base , mating protrusions and recesses for stacking , recessed areas for strapping , and welded loop handles .