Abstract: A machine is comprised of a tool or device having a generally cylindrical plunger that is retained in a generally cylindrical body. A spring fits inside the body to spring-load the plunger by means of a jam nut or other tensioning device. The plunger has tapped mounting holes with a pilot hole on the compression end for attaching various standard or custom components or attachments. The opposite tension end has a threaded extension also used for attaching devices. The body has a smooth outside diameter with at least one flat running the entire length. Due to the close fit of the plunger and body, the plunger has an axial groove on it upper surface to allow air inside the device to escape for smooth actuation. At least one wrench flat is provided on the plunger to facilitate attachment of details. A clamp is used to restrain the body axially.

Abstract: A tool or device is comprised of a generally cylindrical plunger that is retained in a generally cylindrical body. A spring fits inside the body to spring-load the plunger by means of a jam nut or other tensioning device. The plunger has tapped mounting holes with a pilot hole on the compression end for attaching various standard or custom components or attachments. The opposite tension end has a threaded extension also used for attaching devices. The body has a smooth outside diameter with at least one flat running the entire length. Due to the close fit of the plunger and body, the plunger has an axial groove on it upper surface to allow air inside the device to escape for smooth actuation. An optional splitclamp block is provided as a means of mounting. Also available as an option is a retracting lock.