Plain Taper Tri-Roll Gage

A Plain Taper Tri-Roll Gage is a type of measuring tool used by craftsmen for precision measurements. It is classified under the supply class "Measuring Tools" and belongs to the supply group "Measuring Tools" specifically for craftsmen.

The Plain Taper Tri-Roll Gage is designed to measure the taper of cylindrical objects, such as pipes or shafts. It consists of three precision ground rollers that are mounted on a tapered frame. The rollers are positioned at equal distances from each other and are used to measure the taper angle of the object being measured.

To use the Plain Taper Tri-Roll Gage, the craftsmen would place the object between the rollers and adjust them until they make contact with the object. The taper angle can then be read from the scale or dial on the gage.

This type of gage is commonly used in industries such as machining, metalworking, and woodworking, where precise taper measurements are required for fitting and assembly purposes.

Overall, the Plain Taper Tri-Roll Gage is a valuable tool for craftsmen who need to accurately measure taper angles in their work.