Tube Gaging System - The SnakeBall ©

If you need a black and white, go-no go system for evaluating the inside diameter of any tubing, try a “SnakeBall”©. By coupling a cable or wire to a very hard alloy steel ball that is precision lapped to the precise minimum diameter of the tube, a go no-go situation is created.

To prevent the gage ball from getting stuck somewhere in the tube, there is a coil of wire or cable on each side of the ball that is longer than the length of the tube. Using this approach, the ball can be pulled into the tube; and then pulled back out if the tube is undersized or dented somewhere along the path.

A cable with a colored plastic coating, can be supplied that will identify different diameters of ball.

Frequently the no-go gage, will be a simple standard ball plug gage on an AGS handle, (see ball plug gages).