Combined machine tap bit "long" HSS, ground

The combined machine tap is suitable for sheet metal working with right/left handed rotation cordless drilling machines. The thread is cut in one operation, without any tool changing. The tool incorporates a twist drill before the thread-tapping part. Applications: for unalloyed and low-alloyed steels up to 600 N/mm² strength, malleable cast iron and non-ferrous metals. Coperation work process: hole drilling with twist drill - thread cutting (tapping) - thread deburring - thread cleaning when using.