1.Sinorock ISO efficient button rock drill bit 38mm 2.It is most crucial part 3.ISO9001 2008 4.The quality is stable.

 Sinorock ISO efficient button rock drill bit 38mm

We can offer a large range of rock drill bits to suite the changing geology encountered durig project, the details are as follows:

Size	Description	R25N	R32L/N/S	R38N	R51L/N	T76N/S
X	Forged cross-cut drill bit	Φ42/51	Φ51
XX	Two stage cross-cut drill bit			Φ110	Φ110	Φ130/Φ175/Φ200
EX	Cast hardened cross-cut drill bit	Φ42/51	Φ51/Φ76	Φ76/90		Φ130
EXX	Tungsten carbide cross-cut drill bit	Φ42	Φ76
EC	Hardened tri-crescent drill bit		Φ51
ECC	Tungsten carbide tri-cresent  bit		Φ51
ESF	Cast/hardened button drill bit		Φ51	Φ76	Φ100
ESSF	Tungsten carbide button drill bit		Φ51	Φ76	Φ100	Φ120
ESD	Cast/hardened button drill bit				Φ115
ESSD	Tungsten carbide button drill bit			Φ115	Φ115
EY	Hardened tri-crescent drill bit		Φ76	Φ76
EYY	Hardened tri-crescent drill bit		Φ76	Φ76/90
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Hardness

Sinorock ISO efficient button rock drill bit 38mm