America West Drilling Supply...Where going in the hole makes sense!
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Symmetrix N System

Symmetrix N Photo
Symmetrix N Drawing

System
Size

Casing OD
(inch)

Casing
Wall Max
(inch)

Ring Bit ID
(inch)

Ring Bit OD
(inch)

Pilot Bit OD
(inch)

DTH
Hammer
N58
3.50
0.39
2.28
3.78
2.68
  
N69
4.00
0.39
2.74
4.33
3.11
  
N82
4.50
0.39
3.24
4.80
3.62
3"
N95
5.00
0.39
3.74
5.35
4.13
3"
N98
5.25
0.39
3.85
5.55
4.33
4"
N104
5.50
0.39
4.10
5.79
4.55
4"
N116
6.00
0.39
4.55
6.30
5.08
4" - 5"
N131
6.63
0.39
5.18
7.01
5.63
5"
N141
7.00
0.39
5.55
7.40
6.02
5"
N154
7.63
0.47
6.05
8.03
6.57
6"
N175
8.63
0.50
6.89
9.02
7.48
6"
N200
9.63
0.50
7.89
10.08
8.50
6" - 8"
N207
10.00
0.50
8.16
10.51
8.82
6" - 8"
N220
10.51
0.50
8.67
11.02
9.29
8"
N226
10.75
0.50
8.91
11.26
9.57
8"
N273
12.75
0.50
10.75
13.31
11.55
8" - 12"
N306
14.00
0.50
12.00
14.57
12.80
10" - 12"
N352
16.00
0.59
13.85
16.65
14.69
10" - 12"
N364
16.50
0.59
14.32
17.09
15.16
10" - 12"
N398
18.00
0.59
15.67
18.70
16.65
12" - 16"
N444
20.00
0.59
17.48
20.71
18.66
12" - 18"
N492
22.00
0.59
19.41
22.76
20.63
12" - 20"
N555
24.00
0.59
21.89
25.08
22.76
16" - 20"
N592
26.00
0.59
23.31
26.81
24.65
16" - 20"
N642
28.00
0.59
25.28
28.86
26.65
16" - 20"
N692
30.00
0.59
27.24
30.87
28.62
18" - 24"
N740
32.00
0.59
29.13
32.80
30.59
18" - 24"
N790
33.98
0.59
31.10
34.80
32.60
18" - 24"
N838
36.00
0.59
32.99
36.81
34.57
20" - 30"

 

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