TCI drilling bit TCIdrilling bit:1)certified by ISO9001&API2)Fast drilling rate3)Strong cutting structure durability4)be used for water well, oil field, undergrou
pdc bit New design PDC bits, good performance 4.1/2", 4.3/4", 5.1/8", 5.5/8", 5.7/8", 6.1/4", 6.3/4", 6.5/8" 7.3/8&q
TCI drilling bit TCIdrilling bit:1)certified by ISO9001&API2)Fast drilling rate3)Strong cutting structure durability4)be used for water well, oil field, undergrou
TCI roller bit TCIrollerbit:1)certified by ISO9001&API2)Fast drilling rate3)Strong cutting structure durability4)be used for water well, oil field, underground,
tricone bit 1.Cutting Structure The durability of premium tungsten carbide insert is improved with new formulas and new techniques and new techniques.2. Gauge St