Roller Cone TC Button Drill Bit
"Roller Cone TC Button Drill Bit" is listed under
Mining Machinery Category
FEATURES1. TC Inserts Inserts of special grade tungsten carbide inserts are pressed into accurately machined holes in the alloy steel cone bodies, the exposed ends of the inserts form the cutting teeth. 2. Gauge protection A layer of hard-facing material is applied in the gauge of cone to ensure the the hole is within tolerance. Also available are TC inserts gauge protection option which further enhances wear resistance. 3. Shirttail protection layer of hard-facing is applied throughout the perimeter of the shirttail to protect wear of leg shirttail portion. A series of TC inserts are also option which enhances the wear protection. 4. Nozzle Nozzles play a very important role in the life of a drill bit. Bit hydraulics are controlled through these precision drilled nozzles which also go through a series of heat treatment processes for stability. 5. Body The steel body if the bit is maintained at 57 HRC after heat treatment and case hardening of leg and cone. This not only keeps the strength of bit but also prevents propagation of cracks due to shock. 6. Welding Welding is done with quality electrodes to ensure stability in structure. To further enhance the stability, the bit goes through a series of heat treatment processes to relieve stresses after welding. 7. Cone Offset Cones are given offset during assembly of the bit so that gouging and crushing of the bits can take place. Cone offset are 5 degree`s for soft, 3 degree`s for medium and 1 degree` for hard formation bits. 8. Thread Threads are machined in CNC with ultimate precision and dimensioning. Correct measures are taken to maintain the line of bit. A thin layer of heavy duty grease is applied to prevent rust. SIZE2 1/2, 2 7/8, 2 15/16, 3 3/4, 3 7/8, 4, 4 1/8, 4 1/4, 4 1/2, 4 5/8, 4 3/4, 4 7/8, 5, 5 1/8, 5 1/4, 5 1/2, 5 5/8, 5 3/4, 5 7/8, 6, 6 1/8, 6 1/4, 6 1/2, 6 3/4, 7, 7 1/8, 7 1/2, 7 5/8, 7 7/8, 8 1/2, 8 3/4, 9, 9 5/8, 9 7/8, 10 5/8, 12 1/4, 13 3/4, 14 3/4, 17 1/2.
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