Min. Order Reference FOB Price
1 Piece US$500.00-650.00 / Piece
Product Description
DTH Drill Bit Specification: Type Model Length (mm) Weight (kg) External Dia.(mm) Hole Range (mm) 3.5 inch DHD3.5 930 25 Φ82 Φ90-110 4 inch DHD340 1030 39 Φ99 Φ110-135 SD4 1084 40.5 Φ99 QL4 1097 41 Φ99 Mission40 1005 40 Φ99 5 inch DHD350 ...