Features: 1. Applicable hard,very hard and medium soft rock formations.
2. Reliable quality, long service life, rare abnormal breakage during service life.
3. Good flushing effect to ensure high drilling rate
4. Strict quality warranty and compensation rules
Order guide: Bit Dia.+ Shank + Face shape + Carbide button shape
Examples For Ordinary Bits
Concave, spherical+ballistic(other designs of faces and inserts are available)
Audited Supplier 
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