Unfortunately the Special Duty Jaws are prone to break because of their thin design. This is why we offer two different Jaws types.

PE Design
Machinist & Tool Maker
TCA # 00-51938

Custom made small parts and tools
Restoration tools for O, S, & HO gauges

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This ad is for the O gauge Wheel Puller w/ the Standard & Special Duty Jaws comb.

What is the difference between the Standard Duty & Special Duty Jaws
The big different in the two jaws is strength. That why we make 2 different styles.
- The Standard duty jaws are design for engine that have the gears on the outside of the case. they typical have a greater amount of space between the back of the wheel & the motor case. Most older Lionel & AF would use this Jaw. The only excision is Marx's engines. They need the Special duty jaws.
- The Special duty jaws are weaker in design because they where design to fit behind wheels that are much tighter to the case. Most time the drive gears are inside the motor case.

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