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Guyana 14 3/4" 5 blades PDC bit
Guyana 132mm 3 blades diamond bit
Guyana 4 blades PDC diamond bit
Guyana roller cutters for rock reamer
Guyana replaceable roller cones for reamer bit
Guyana 7 7/8”3 blades diamond PDC bit
Guyana 12 1/4inch Hybrid drill bit
Guyana 17 1/2inch Hybrid pdc drill bit
Guyana 9 7/8 tricone bit for mining,iadc825
Guyana 26inch steel tooth bit iadc115
Guyana 8 3/4inch pdc bit,steel body, 4 blades
Guyana 12.25 IADC317 steel tooth tricone bit
Guyana 12.25 IADC127 tricone roller bit
Guyana 12.25 IADC126 steel body PDC bit
Guyana 12.25 IADC117 steel tooth tricone bit
Guyana 8.5 IADC127 milled tooth tricone bit
