Min. Order Reference FOB Price
1 Piece US$400.00-800.00 / Piece
Product Description
Product Description Basial Specification IADC Code 117,127,126,217 417,437,517,537 617,627,637,737 Bit Size 7 1/2'',8 1/2'' 9 7/8'',12 1/4'' Tooth Type wide teeth,chisel insert Bit Weight 18kg Meterial tungsten carbide insert,inlaid friction-reducing alloy Bearing Metal sealed ...