
Due to modern production lines, PRECO is now the leading manufacturer of drill chuck. PRECO is mainly engaged in the business of Straight Shank Twist Drills and other product series. The design of PRECO metric tap follows the many basic principles. They are mainly mechanical properties, static and dynamic structure, safety, cycle time and so on. Its graduation and dimension can be customized. our company always has employed persons with rich experience specialized in manufacturing Straight Shank Twist Drills. With high hardness, it is highly resistant to deformation.

We promise all our businesses done in good faith. We pledge to never lie to clients, no matter in relation to the materials we used, the workmanship quality, or product quality.

