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	PDC-SB-76-MB-Blade Type Tungsten Matrix BitSuitable design of structure enhances the intensity of bits and makes better gauge protection. 
 High quality tungsten carbide ensures good life-span.
 The stable and reliable welding technology ensures better quality stability.
 Good match between drill pipes with high precise thread, easily disassembled.
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	Plug Hole Integral Rod for Stone Work- Series 22: :
- Length: 300-500mm :
- Diameter: 22/24mm :
- Hex Shank: 19*108mm:
 












