Power drills; Air distribution units for pneumatically driven pumps; Milling cutters for milling machines; Machine tool holders; Power tools, namely, thread mills; Power tools, namely, end mills; Precision machine tools, namely, hard metal tools, high speed steel (HSS) tools, carbide tools, ceramic tools, poly crystalline diamond (PCD) tools, and diamond-coated and diamond-uncoated tools, and hard metal tools, all for use in the cutting and forming of materials by others