Standard Stem is used as weight to overcome stuffing-box packing friction, andwell pressure on the cross-sectional area of the wireline.

Stem can also transmit force either upward or downward to set or retrieve downhole controls.

Size and weight of the stem are determined by the impact force required and the size of the downhole tools to be run or pulled.

For normal conditions five feet of stem is used, made-up by combining two, three or five-foot lengths of standard stem.

Wireline Stem Sinker Bar 4.2 Lead Filled Stem

 Wireline Stem Sinker Bar 4.3 Tungsten Filled Stem

Wireline Stem Sinker Bar 4.4 Roller Stem