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Product Description
40mm 7 button hard rock drill bits for mining
Drill bits are widely used in tunneling, mining, construction, stonework, transportation facility construction etc. For rocks with hardness F=15-18 Class, GL is suitable; for rocks with hardness F=12-15 Class, GA is suitable; for rocks with hardness F=10-12 Class, GB is the suitable.
| Specification | |
Application | Tunneling, mining, construction, stonework engineering and
transportation facilities etc. |
Assemble | Connected to the H22 drilling rod.(Small end : 18×7° , Insertion
depth : 30-33mm) |
Rocks with hardness | GL:Granite, basalt(F=15-18) GA:Granite, quartz porphyry, siliceous schist, the hardest
sandstone and limestone(F=12-15) GB:Dense granite, strong sandstone,limestone,quartz veins,sturdy
conglomerate,iron ore(F=10-12) |
Photos of 40mm 7 button hard rock drill bits for mining
Package of 40mm 7 button hard rock drill bits for mining
