Knuckle Jar



4.4 Knuckle Jar

Knuckle Jar is similar in construction to the Knuckle Joint. The Knuckle Jar design incorporates a length extension of the socket that allows the ball to move vertically for light jarring.

Available tool sizes as shown.

Tools

O.D.

Fishneck

O.D.

Connection

Type

Standard

Stroke

1.250

1.187

UN/JHQ/JHP

2

1.500

1.375

UN/JHQ/JHP

1.875

1.750

UN/JHQ/JHP

2.125

1.750

UN/JHQ/JHP

2.500

2.313

UN/JHQ/JHP



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