Fully Ground Parabolic Flute Deep Hole Extra Long Drill Bits

Proking high-quality fried dough twist drill is the best drill in China!

The high-quality HSS material with TiN coating extends the life of the drill bit and improves the cutting efficiency.

High cutting speed, high efficiency and long service life

Better design and accurate manufacturing ensure the stability and stability in the processing process.

Our professional team is led by experienced engineers, including durability testing, high voltage testing and unloading machines, to ensure safe and fast delivery of products to customers, good warehouse management and effective logistics tracking. Continuously pursue customer satisfaction, and always provide guarantee and after-sales service for all customers, including spare parts, maintenance and technical support.