Specifications Coal bit

1>ISO9001

2>Good stability

3>Long work life

4>High efficiency

T.C. coal bits Coal drill bit/ anchor shank coal bit/ coal bit: Applications: apply to the anchor-network support hole drilling in coal mine, hydraulic project. Etc. Characteristics: High wear resistance and impact-resistance toughness. To repeat repair & greaning are not necessary, long drill life. High efficiency could be promoted sharply in penetration of high-medium hard rock formation. Labour intensity could be reduced. Rock formation to be suitable t:f=4-12 ? 3 wings/ 2 wings ? Product description: The coal bits are mainly used in coal and mine drilling, have dry-type & wet-type. We can do different measures according to customer’s requirements.

Colliery Drilling Tools	Main Standard(mm)
	D	H	L	M
Thread joint	27	44	17	M14×1.5
	27	54	17	M12×1.75
	28	54	20	M12×1.75
	29	52	18	M14×1.5
	30	50	18	M14×1.5
	32	52	22	M14×1.5
	32	56	22	M12×1.75

? MOB:86-15039063073
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SKYPE:katherine.paul6