Contact Platform Support
Help Center7 1/2inch Mill Tooth Drilling Bit for Soft Drilling Formation
Related Products
-
Yichuan Well Drilling Equipment 9 1/2 Inch Steel Tooth Gear Milling Drill BitUS$ 1110 - 1120MOQ: 1 Piece -
15 1/2" 394mm Rock Steel Tooth Drill Bit for Water Well Drilling BitUS$ 2720 - 2730MOQ: 1 Piece
-
Yichuan Brand New 12 1/4 Inch Steel Tooth Tricone Drill Bit for Soft DrillingUS$ 1490 - 1500MOQ: 1 Piece
-
10 5/8" Steel Tooth Tricone Rock Drill Bit/Tricone Bit for Water Well DrillingUS$ 1405 - 1415MOQ: 1 Piece
-
IADC127 8 1/2" Steel Tooth Tricone Drill Bit for Water Well DrillingUS$ 690 - 700MOQ: 1 Piece
Basical Parameter | |
Bit Size |
7 1/2"(190.5MM) |
IADC Code |
127 |
Tooth Type |
Steel /Milled Tooth |
Bearing Type |
Elastomer Sealed Bearing |
Connection |
4 1/2"API reg pin |
Rotary Speed(rpm) |
180~80 |
Weight on Bit(KN/MM) |
0.35~1.00 |
Formation |
low compressive strength,high drill-ability and soft formation,like shale,clay,salt rock and soft limestone,etc. |
7 1/2 inches is a regular size in water well drilling, it is working well with small capacity drilling rigs and widely used in the world.
Steel tooth tricone rock bit is also named milled tooth tricone rock bit could drill soft mudstone, even soft limestone, the cones are hard faced by tungsten carbide, the bearing is journal and locked by ball, high grade elastomer(rubber)-HNBR O-ring sealed bearing, grease compensating system lubricate the bearing , the working life is very long.
Application
Well Drilling Water Well Drilling
IADC |
Rock formation |
WOB (KN/mm) |
WOB (KN/mm) |
116/117 |
Low compressive strength, high drill-ability and extremely soft formation, like soft shale, clay, conglomerate etc. |
0.35~0.90 |
180~80 |
126/127 |
Low compressive strength, high drill-ability and soft formation, like shale, clay, soft limestone, salt rock, etc. |
0.35~1.00 |
180~80 |
136/137 |
Soft to medium soft with low compressive strength or soft with hard interlayer, like anhydrite, soft limestone,sandstone, etc. |
0.37~1.05 |
130~60 |
216/217 |
Medium hard formation with relatively high compressive strength and hard interlayer, like hard shale, sandstone, limestone, etc. |
0.5~1.20 |
100~50 |
Send Inquiry to This Supplier
You May Also Like
-
8 3/4inch Mill Tooth Drilling Bit for Soft Drilling FormationUS$ 690 - 700MOQ: 1 Piece
-
Yichuan 6 1/2'' Steel Tooth Tricone Bit/ Roller Cone Rock Bit for Water Well DrillingUS$ 560 - 570MOQ: 1 Piece
-
3 7/8" Steel/milled Tooth Bits Tricon Drill Seal Bearing Tungsten CarbideUS$ 380 - 390MOQ: 1 Piece
-
Smaller Tooth 4 1/2'' Milled Tooth Tricone Bit With Non Sealed BearingUS$ 410 - 420MOQ: 1 Piece
-
Water Well Drilling Tools Size 5 3/4 Milled Tooth Bit /steel Tooth BitUS$ 455 - 465MOQ: 1 Piece
-
Mill Tooth Tricone Drill Bit 16 Inch 406 mm IADC127US$ 3080 - 3100MOQ: 1 Piece
-
Factory Price 17 1/2 Inch IADC127 API Mill Tooth Roller Cone BitUS$ 3880 - 3900MOQ: 1 Piece
-
14 3/4'' Iadc127 Steel Tooth Tricone Bit For Water Well Drilling BitUS$ 2330 - 2350MOQ: 1 Piece
-
11 5/8 Inch Steel Tooth Tricones Bits for Water Well DrillingUS$ 1470 - 1480MOQ: 1 Piece
-
8 1/2'' Steel Tooth Drill Bit for Water WellUS$ 840 - 845MOQ: 1 Piece
