Portable drilling machines; power operated drills; precision machine cutting tools, namely, high speed steel (HSS) cutting tools, carbide cutting tools, poly crystalline diamond (PCD) cutting tools; bits for power drills, namely, drill cages; accessories for use with power drills, namely, offset angle drill bits; power operated tools for driving rivets; air compressors; hydropneumatic generators, namely, hydraulic pressure generators in the nature of compressors as parts of machines