Kelly Bar Square Adapter

Fabricated kelly box is welded to a square 12" long piece of bar to create an adapter for pressure tools.  Common configuration is a hole in each piece although slots are also available to meet your specific needs.

KELLY BOX ADPT PGRAPOHIC.JPG 
PART NO.
A
B
C
KELLY BOX SIZE
BAR SIZE
HOLE DIAMETER
inch
mm
inch
mm
inch
mm
29835
2.50
64
2.5
64
1.13
29
2419088
3.00
76
2.5
64
0.88
22
A001797
3.00
76
3.5
89
1.13
29
2437833
3.00
76
4
102
1.13
29
A000704
3.50
89
2.5
64
0.88
22
A000354
3.50
89
3
76
1.13
29
A001800
3.50
89
4
102
1.13
29
2429385
4.00
102
3
76
1.13
29
68482
4.00
102
3.5
89
1.13
29
65347713TU
4.00
102
4.25
108
1.13
29
A001659
4.25
108
4
102
1.13
29
65349106TU
4.50
114
3.5
89
1.13
29
A001819
4.50
114
4
102
1.13
29
65347779TU
5.13
130
4
102
1.13
29
65351010TU
5.13
130
4.25
108
1.13
29
A000750
5.25
133
3.5
89
1.13
29
A000046
5.25
133
4
102
1.13
29
2474055
5.25
133
4.25
108
1.13
29
A000197
6.00
152
4
102
1.13
29
A000781
7.00
178
4
102
1.13
29
A001782
8.00
203
5.25
133
1.38
35
NOTE: Other Configurations (Hole sizes/Locations & Slots) Available Upon Request.

 
Kelly bar adapters are subject to a maximum drill torque see below for maximum drill torque specifications.

 

KELLY BAR (SQ)
MAXIMUM DRILL TORQUE
Inch
mm
Ft-lb
Nm
2.50
63.5
32,000
 
3.00
76.2
45,000
60943
3.50
88.9
45,000
60943
4.00
101.6
67,000
90737
4.25
107.95
75,000
101571
5.25
133.35
118,000
159805

 

 

Technical Details Metric Imperial