This machine is a combination of milling cutter and drill. It can be used in one machine to reduce the number of machines. It is convenient to use, effiffifficient and fast and easy to grind without technology. A5 is a combination of strew tape and drill. A6 is a combination type of strew tape and milling cutter. This machine is a combination of milling cutter and drill. It can be used in one machine to reduce the number of machines. It is convenient to use, effiffifficient and fast and easy to grind without technology.