... 1/2" Tricone Drill Bits 1-Rubber mealing 2-API or ISO 9001:2008 3-Delivery Date: In 7 days 8 1/2 ... Term T/T or L/C at sight MOQ 1 Piece Supply Ability 1000 Pieces/month Delivery Time ... work days SizeBit TypeIn.mm6152.4517G, 537G, 617G, 637G6 1/2165.1517G, 537G7 7/8200.0517G, 527G, 547G, 617G ... , 627G, 637G8 1/2215.9437G, 447G, 517G, 537G, 617G, 627G, 637G9 1/2241.3437G, 517G, 537G, 547G, ...