Product Main

Specifications

Size
Length
m
Upper box connection
Lower pin connection
I.D.
Driving section
mm
in
Type(LH)
O.D.
Thread
O.D.
Cross flat
For square kelly
Cross corner for hexa kelly
Std.
optional.
Std.
optional.
63.5
2 1/2
12.19
6 5/8
REG
4 1/2 REG
196.8
146.0
NC26
85.7
31.8
63.5
83.3
 
76.2
3
12.19
6 5/8
REG
4 1/2 REG
196.8
146.0
NC31
104.8
44.4
76.2
100.0
85.7
88.9
3 1/2
12.19
6 5/8
REG
4 1/2 REG
196.8
146.0
NC38
120.6
57.2
88.9
115.1
100.8
108.0
4 1/4
12.9
6 5/8
REG
 
196.8
146.0
NC46
158.8
71.4
108.0
141.3
122.2
6 5/8
REG
196.8
146.0
NC50
161.9
71.4
108.0
141.3
122.2
133.4
5 1/4
12.9
6 5/8
REG
 
196.8
 
5 1/2 FH
177.8
82.6
133.3
175.4
151.6
6 5/8
REG
196.8
NC56
177.8
82.6
133.3
175.4
151.6