Lancaster Pump Upper Stretcher Pressure Block 12" but it can be done

but it can be done at 3600 RPM

It basically mars on the grain boundaries

Fits 5/8" x 11 thread

This is the refill only

This kit will remove most scratches and fog from headlight lens and will produce a shinny clear surface

Lancaster Pump Upper Stretcher Pressure Block 12" but it can be doneUpper Stretcher Pressure Block These are the original and only units made in the USA by Lancaster Pump. Lancaster Pump holds the original patent for this metal Shrinker Stretcher concept. The Lancaster Pump Stretcher Shrinkers have been copied in China and their poor imitations are not near the quality of ones made in the USA. The Lancaster Jaws are a darker color indicating they are heat treated. The heat treatment process used on Lancaster jaws