China Tungsten Carbide Drill Bit for Hard Metal Drilling with Inner Coolant

Description of coolant-fed drill
1.Dimension : 3.3x66, 3.5x66, 6.0x82, 8.0x91, 16.0x133 and customized sizes
2.Measurements manufactured according to standard DIN6537
Chisel edge grinding IRK standard
Primary edge point angle 140°
Shank according to DIN6535HA h6
3.Coating : Optinal
4. Tolerance of cutting edge diameter m7
5.Chip Evacuation Groove special designed, easy evacuation
6.Use for the process of structual steel, Alloy steel, Staineless steel and other common materials; Precise centering ability which enable to gain stable dimensional accurancy and fine surface quality; suitable for process system with excellent rigidity
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Company Information
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd is located in hometown of Chinese carbide industry - Zhuzhou city. The company has more than 20 years' experience in manufacture, design and sale of various kinds of carbide products, main products include: Carbide end mills, carbide rods, indexable inserts, brazed inserts, wire drawing dies, forging dies, wood working tools, saw tips, mining buttons, etc
The company has passed ISO 9001: 2008 quality system, possesses advanced production equipments, complete testing instruments, strong R&D center and QC teams.
With excellent quality, strong technical support, and good after sales service, Grewin Carbide brand products are sold to more than 50 countries in the world, such as Europe, USA, south east Asia, Middle East, south America, etc.
The company is dedicated to " WE GROW, WE WIN". Grewin Carbide is growing up with the World's carbide technology, to meet the demand of our customers from all over the world.