Jensen has taken every precaution to guard against particulate contamination and still provide the most functional cleanroom kit possible. The PVC pallets are fully submersible in cleaning tanks or can easily be cleaned by hand. The case is easily cleaned as well. JTK-1004 consists of both inch and metric tools in a white polyethylene case. Features 3 tool pallets. The metric tools are stored in a slightly smaller tool pallet that rests in the bottom of the case.