We develop the market with the advantage of product science and technology innovation, establish the image with product quality and honest service, develop new Bystronic Grinding Wheel, Diamond Grinding Wheel for Automotive Glass, Bystronic Drill Bit to expand new users, and consolidate the competitive strength of the enterprise. The company will repay the support and trust of friends from all walks of life at home and abroad with better products and better services. Our company will continue to attach importance to product development and innovation to create greater value for customers at home and abroad. Source material and years of production technology create our stable and solid quality control.

The taper shank integrated drill bit is designed as taper shank with Mohs rating of 1, which is suit for CNC driller machine with cone axis. Compared with straight shank drill bits, they just fit for different machine types, and the drilling effect is similar. DAOTIAN can fit any drilling machine on the market today. The shank design will be selected to fit your equipment. A full range of drill bit designs is available to fit each machine while meeting the requirements for:

• Quick startup
• Accurate hole size
• Hole quality
• Spindle speed
• Feed rate
• Coolant type
• Tool life

1. Recognition of drill bit

Choose the right drill bit to match the driller machine, and make sure meets the requirement of glass hole size and thickness.

2. Clearance of drill bit

Clear drill bit with sponge including drill position part and surface;

3. Installation of drill bit:

Install both the bottom and top drill bits and check the radial runout less than 0.05mm;

4. Debugging of drill bit

Normally start up with 50%-60% of feed rate, after drilling 20-30 holes, check the hole quality, if no defect, speed up to 70%-80% gradually.

1. What is your package method?

Normally the drill bits are placed in individual plastic boxes to avoid damage during long distance transportation.

2. Can the drill bit be retried?

Yes. To prolong the lifetime of the drill bit, normally we return the drill bit to make sure precise drill and chamfer size, we operate several redress centers around the world to provide after-sale service and save cost.

3. Are you a manufacturer or trade company?

We are a professional grinding tool manufacturer with over 25 years of experience, our grinding tools are traded all over the world

4. Can the products be manufactured by customers' requirements?

Yes, the specifications stated above are the standard ones, we can design and manufacture as required.

Each of our Model Zdy12000ld Crawler Type Hydraulic Tunnel Drill for Coal Mine is carefully designed by us, not only with superior quality but also exquisite appearance. We achieve high efficiency, low cost, coordination and standardized management process assurance. Our company adheres to the idea of "perfection in every link" and regulates the operation of the company with the high standard of modern enterprises.