Min. Order Reference FOB Price
10 Pieces US$5.00-10.00 / Piece
Product Description
Tapered chisel bits from rock drill bits factory ProDrill, suitable for mining of black metal mines(such as iron mine, manganese etc), nonferrous metal mine(such as gold, silver, copper etc), marble and granite etc. Its drilling depth usually is 15m-18m in case of hardness grade F8-14. At present, ...