Dia 53,75,94,113,133,153,173,....311
2 3/8REG; 2 7/8REG;3 1/2REG ;4 1/2REG; 5 1/2REG;6 5/8REG;7 5/8REG; 7 5/8REG;8 5/8REG....
Port: Ningbo,Shanghai,Qingdao,Lianyungang
Minimum Order Quantity: 5 Piece/Pieces
Supply Ability: 100 Piece/Pieces per Day
Payment Terms: L/C,T/T,Western Union
Contact Supplier
Packaging Detail: inside in sponge, outside in cartons or wood case
Delivery Detail: 7 days
Coring bits
speicficatons Size Cutting wings Water hole threading Rock formation
D H Blade PDC quantity quantity Diameter square F≤6 for soft rock,mine
Φ50 56 78 3 6 3--5 6 taper
Φ60 60 125 3 7 3--5 6 lock
Φ75 75 150 3 9 3--5 8--16
Φ94 94 94 170 10 3--5 8--16
Φ113 113 195 4 12 3--5 10--20
Φ133 133 220 4 16 3--5 10--20
API connector and specifications
Connector Type | Inch/threads | Taper | Male Connector(mm) | (mm) Female connector diameter (mm) | ||
| big-end diameter | small-end diameter | |||||
R E G | 2 3/8REG | 5 | 14 | 66.67 | 47.62 | 68.263 |
| 2 7/8REG | 5 | 14 | 76.20 | 53.97 | 77.78 | |
| 3 1/2REG | 5 | 14 | 88.90 | 65.07 | 90.488 | |
| 4 1/2REG | 5 | 14 | 117.47 | 90.47 | 119.06 | |
| 5 1/2REG | 4 | 14 | 140.21 | 110.06 | 141.68 | |
| 6 5/8REG | 4 | 16 | 152.19 | 131.03 | 153.99 | |
| 7 5/8REG | 4 | 14 | 177.80 | 144.47 | 180.18 | |
| 8 5/8REG | 4 | 14 | 201.98 | 167.84 | 204.39 | |
F H | 3 1/2FH | 5 | 14 | 101.45 | 77.62 | 102.79 |
| 4 FH | 4 | 16 | 108.71 | 89.66 | 110.33 | |
| 4 1/2FH | 5 | 14 | 121.716 | 96.31 | 123.83 | |
| 5 1/2FH | 4 | 16 | 147.95 | 126.79 | 150.02 | |
| 6 5/8FH | 4 | 16 | 171.52 | 150.37 | 173.83 | |
I F | 2 3/8IF | 4 | 16 | 73.05 | 60.35 | 74.61 |
| 2 7/8IF | 4 | 16 | 86013 | 71.32 | 87.71 | |
| 3 1/2IF | 4 | 16 | 102.00 | 85.06 | 103.58 | |
| 4 IF | 4 | 16 | 122.70 | 103.73 | 124.61 | |
| 4 1/2IF | 4 | 16 | 133.35 | 114.30 | 134.94 | |
| 5 1/2IF | 4 | 16 | 162.48 | 141.32 | 163.91 | |
Model No.: 75mm; 94mm; 113mm etc.
Features: 1.PDC bit has 3 reinforced PDC blade;
2.Super anti-wear characteristic;
3.Ultra-durability;
4.Patented products;
5.25 years.
Model No.: J series Low air pressure
Features: Our J series Low air Down the hole bit is of high quality and low prices
Model No.: made-to-order
Features: 1coal drill bit/coal bit/anchor shank bit various kinds of drill bits,cutter bits
2we have low price and supreme quality
Model No.: 3-3/5" to 26"
Features: Newest TCI Tricone Bits
1)used for oil filed, water well
3)metal seal or rubber seal
4)Cerfied by API &ISO
5)FOB 100~3000$
Model No.: size 3-3/5" to 26"
Features: Newest Tricone Rock Bits
1)Certified by API & ISO
2)20 experience
3)Best quality and best service
4)FOB 100~3500 USD
Model No.: 3-3/5" to 26"
Features: Newest TCI Tricone Bits
1)used for oil filed, water well
3)metal seal or rubber seal
4)Cerfied by API &ISO
5)FOB 100~3000$
Model No.: COP/CIR/IR/DHD
Features: High and low air pressure down-the-hole drill bits
Low air pressure holeDia.:65-220mm
High air pressure hole Dia.:85-305mm
Model No.: All types
Features: Specialisted in producing of Surface-set/ Impregnated diamond core bit, synthetic diamond bit, casing shoe bit, TC bit, NQ, HQ,,
Model No.: 637
Features: Newest TCI Tricone Bits
1)used for oil filed, water well
3)metal seal or rubber seal
4)Cerfied by API &ISO
5)FOB 100~3000$
Model No.: N22
Features: Electroplated straight drill
1.NO.1 manufacturer of grinding wheel in china,OEM available.
2.ISO9001:2000 & Germany MPA .
Model No.: 25mm-450mm
Features: 1.Diamond core drill bit has long service life;
2.High efficiency;
3.Over 25 years experiences
4.good quality and good price
Model No.: 5mm-100mm
Features: Diamond Drill Bit for glass
1 fast drilling speed,2 high efficiency and less chipping,3 minimum material deformation 4 long lif