The continuous growth of 3D drilling industry has also led to the development of the whole machine tool manufacturing industry. In the development of each industry, there will always be some imperfect problems to be improved. Due to the explosive rapid development and increasing demand of 3D drill, irregular factories and household used 3D drill are transformed into new ones for marketing. Due to the improper origin of this kind of equipment, there are quality and safety problems, which attract many customers to consult in terms of price. At the same time, never forget the important factor of quality. Once 3D drilling quality problems, there is no timely after-sales service, and damage the image of 3D drilling manufacturers in the hearts of customers. In order to allow you to buy durable 3D drill. In addition, users who are in contact with the 3D drill for the first time can identify whether the 3D drill has been renovated. Our company will summarize the identification method of 3D drilling renovation and share it with you. Whether the 3D drill is renovated or not can be distinguished from its performance, quality and fuselage. < br style = "list style type: none;" / > 1. In terms of 3D drill performance, the performance of 3D drill is the key factor for users to consider purchasing. In fact, the most important factor to consider the performance of 3D drill can be considered from the aspect of origin. In terms of the quality of 3D drills, some of the defective factories are selling their own refurbished machines. The motors and accessories were also replaced. Therefore, customers can not normally carry out production and use after purchase. In this case, the user can identify the motor type. < br style = "list style type: none;" / > 3. The 3D drill body is distinguished mainly by casting and steel. It can be found from the equipment manual that gradually and the supplier of steel materials can be identified, and carefully observe whether there are traces of repair and rust pits after wear and tear on the three-dimensional drilling guide rail.