Wireline Top Subs/ Head Subs/ Firing Subs
Industry proven wireline top sub design, made more productive, safe, and durable.
Yellow Jacket Oil Tools offers top subs for wireline applications, also referred to as head subs or firing subs. Yellow Jacket top subs offer design features that increase productivity, user safety, and tool durability.

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Wireline Top SubsMore Productive
Fluting increases pipe wrench grip and torque for faster tool string assembly and disassembly.

Safer
With fluting, wrenches are less likely to slip and injure users.

More Durable
Premium, heat-treated 4340 steel improves durability.

Fluting outlasts the industry-standard, knurled style gripping.

Sub Styles
Spring Boot Style
Firing Block Style