tungsten carbide drill bit,rock bits coal drill bit

Model:	25-28,32,42mm
Brand:	LD
Origin:	Made In China
Category:	Industrial Supplies / Mining Machine
Label:	pdc anchor bit , pdc pcd roof bit , pdc coal bit
Price:	US $10 / pc
Min. Order:	5 pc

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Product Description

Applications: Apply to the anchor-network support hole drilling in coal mine, hydraulic project. Etc.
Characteristics:
1. High wear resistance and impact-resistance toughness.
2. To repeat repair & gleaning are not necessary, long drill life.
3. High efficiency could be promoted sharply in penetration of high-medium hard rock formation.
4. Labour intensity could be reduced.
5. Rock formation to be suitable t: F=4-12

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 coal dirlling bits, mining drilling bits,

coal mining drill bits, mining drilling bits. carbide drill bits, anchor shank drill bits, coal anchor shank drill bits, carbide coal mining drill bits,
29 52 18 M14 1.5
30 50 18 M14 1.5
32 52 22 M14 1.5
32 56 22 M12 1.75