Place of Origin: Hunan China (Mainland)        Brand Name: Great Wall                   Model Number: thread button bit
Type: Drill Bit,thread button bit                   Machine Type: Drilling Tool               Certification: ISO9001:2008
Material: Carbide + Alloy  Steel                    Processing Type: Forging                  matching: 95% similar to world famous brand
Button shape: Spherical and Ballistic
Bit face shape: Flat shape,Drop center shape,Convex shape,Double Guage shape 
Body type: Normal type and retract type
Use: Ore mining and quarrying,ect 
﹡Main thread bit dimension:
R38    Diameter: 51mm 76mm 89mm,
T38    Diameter: 64mm 76mm 89mm,102mm
T45    Diameter: 76mm 89mm 102mm 115mm
T51    Diameter: 89mm 102mm 115mm
﹡Features:
1. Energy-saving,more durable.
2. Smooth cutting surface, high cutting speed.
3. we can design and manufacture according to customer's requirement of the Bit  
Diameter,NO. of air holes,button shape and the face shape.
﹡About Us:
1. Our factory has been specialized in manufacturing & exporting drilling tools and spare parts over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 10 year's professional working experience.
4. Our products are exported throughout the world. Main market:Russia,USA,North Africa.
Canada, Australia, Brazil, Uruguay, etc.
﹡Questions you may be interested in:
1. Payment:  T/T,Western Union,Paypal
2. Delivery time:  Based on your order qty, generally it takes 15-20 days for
production.only need 2 or 3 days if it's available in our stock.
3. Shipment:
Trail order: we suggest by DHL,express
Bulk order: we suggest by sea.
4. Quality control:  We have our experienced QC Dep.
They will perform stick inspection and tesing for every order before shipping out.
5. About aftersale services
Our sales team and technical Dep. Will be available at any time.(Holidy excluded)