Large Span Group

China Manufacturer with main products: K Span Machine, Roll Forming Machine, Mic120 Mic240 Abm120 Abm240 Super K Span Machine, Slitting Line, Light Gauge Steel Framing Machine,...

Drill Collar

Specifications

Drill Collar
Drill collars are manufactured strictly according to API Spec7-1 standard with material of AISI 4145 Mod. Our company supplies slick drill collars, spiral drill collars and non-magnetic drill collars etc. The size of drill collar Kingwell is from 3-1/8 to 11 inches. Besides models listed in the table below, other drill collars at customers' specific request can be available.


Drill Collar

Drill Collar Model

D

d

L(mm)

DF(mm)

Bending Strength ratio

Drill Collar
Nominal size

mm

In

mm

in

QW-DC3-1/8

79.4

3-1/8

31.8

1-1/2

9,150

76.2

2.57:1

NC23-31

QW-DC 3-1/2

88.9

3-1/2

38.1

1-1/2

9,150

82.9

2.42:1

NC26-35(2-3/8IF)

QW-DC 4-1/8

104.8

4-1/8

50.8

2

9,150

100.4

2.43:1

NC31-41(2-7/8IF)

QW-DC 4-3/4

120.7

4-3/4

50.8

2

9,150

114.7

2.58:1

NC35-47

QW-DC 5

127

5

57.2

2-1/4

9,150

121

2.38:1

NC38-50(3-1/2IF)

QW-DC 6A

152.4

6

57.2

2-1/4

9,150/9,450

144.5

2.49:1

NC44-60

QW-DC 6B

152.4

6

71.4

2-13/16

9,150/9450

144.5

2.84:1

NC44-60

QW-DC 6-1/4A

158.8

6-1/4

57.2

2-1/4

9,150/9,450

149.2

2.91:1

NC44-62

QW-DC 6-1/4B

158.8

6-1/4

71.4

2-13/16

9,150/9,450

150

2.63:1

NC46-62(4IF)

QW-DC 6-1/2A

165.1

6-1/2

57.2

2-1/4

9,150/9,450

154.8

2.76:1

NC46-65(4IF)

QW-DC 6-1/2B

165.1

6-1/2

71.4

2-13/16

9,150/9,450

154.8

3.05:1

NC46-65(4IF)

QW-DC 6-3/4A

171.4

6-3/4

57.2

2-1/4

9,150/9,450

159.5

3.18:1

NC46-67(4IF)

QW-DC 6-3/4B

171.4

6-3/4

71.4

2-13/16

9,150/9,450

159.5

2.37:1

NC50-67(4-1/2IF)

QW-DC 7A

177.8

7

57.2

2-1/4

9,150/9,450

164.7

2.54:1

NC50-70(4-1/2IF)

QW-DC 7B

177.8

7

71.4

2-13/16

9,150/9,450

164.7

2.73:1

NC50-70(4-1/2IF)

QW-DC 7-1/4

184.2

7-1/4

71.4

2-13/16

9,150/9,450

169.5

3.12:1

NC50-72(4-1/2IF)

QW-DC 7-3/4

196.8

7-3/4

71.4

2-13/16

9,150/9,450

185.3

2.70:1

NC56-77

QW-DC 8

203.2

8

71.4

2-13/16

9,150/9,450

190.1

3.02:1

NC56-80

QW-DC 8-1/4

209.6

8-1/4

71.4

2-13/16

9,150/9,450

195.7

2.93:1

6-5/8REG

QW-DC 9

228.6

9

71.4

2-13/16

9,150/9,450

212.7

3.17:1

NC61-90

QW-DC 9-1/2

241.3

9-1/2

76.2

3

9,150/9,450

223.8

2.81:1

7-5/8REG

QW-DC 9-3/4

247.6

9-3/4

76.2

3

9,150/9,450

232.6

2.57:1

NC70-97

QW-DC 10

254

10

76.2

3

9,150/9,450

237.3

2.81:1

NC70-100

QW-DC 11

279.4

11

76.2

3

9,150/9,450

266.7

2.84:1

8-5/8 REG

Drill Collar from this supplier

Maxdrill Down the Hole Drilling Tools BR2 DTH Drill Button Bit    
FOB Price: 115.00-130.00 USD/Piece
Min Order: 1 Piece
Maxdrill Ql60 Hammer 240mm Down the Hole Bit    
FOB Price: 700.00-800.00 USD/Piece
Min Order: 1 Piece
MiningDrilling Machine Parts/Dig Harvester/Dig & Drill/Industry/Gosub/Miners/Mining Truck/Drill Bits/    
FOB Price: 1.00-10000.00 USD/Case
Min Order: 1 Case
CNC Milling Aluminum Accessories SIM Racing Rig Cockpit Aluminum Machine Mount Plates    
FOB Price: 23.00-25.00 USD/Piece
Min Order: 50 Pieces
Top Hammer Drilling Tools Threaded Drill Bit For Rock Drilling And Blasting    
FOB Price: 30.00-100.00 USD/Piece
Min Order: 1 Piece

More products from other suppliers

Nozzle    
nozzle    
Whirl Jet Nozzle (SPJT)    
Min Order: 10 Pieces
TF-450 Low Price Coal Charcoal Rods Extruder Machine    
FOB Price: 4,500.00-120,000.00 USD/Set
Min Order: 1 Set
Tapered Drill Rod    
Min Order: 20 Pieces
hohnson screen/mining screen/run down screens    
FOB Price: 45.00-64.00 USD/Square Meter
Min Order: 50 Square Meter
API 11B Sucker Rod    
Min Order: 50 Ton
J55 K55 N80 L80 oil casing pipe    
FOB Price: 750.00-1,200.00 USD/Ton
Min Order: 50 Ton

Can't find a suitable Supplier or product? Entrust ECVV to purchase the well-chosen Chinese products with high cost performance.

Learn More>> Start Safebuy Order

Communicate with Supplier

Sourcing from ECVV
Join Facebook Group