Industrial Grade Arm Tapping Machine is capable of tapping from m-4 to m-12 and is powered by a 0.5 hp three phase motor. The Machine has the feature that feed is pneumatic and direction of feed changes on sensing via a limit switch. The Machine has stroke of 100 mm and come fitted with a feed regulator. The Machine can be used for roll tapping in softer materials like aluminium copper and brass. The Machine has tap that is held in a reversible tapping attachment which will reverse at double speed. The Industrial Grade Arm Tapping Machine has no need for operator to do anything except component loading unloading.