Choose from a wide range of replacement parts and accessories to ensure top performance of your Rex Gauge durometer kit test block.

This shore A test block aids in obtaining accurate readings from your durometer as it allows you to develop the proper "feel" for the gauge. Rex Gauge's test blocks give you the ability to develop the proper feel, and, while it is not to be used for calibration purposes, it enables the user to perform a quick check for proper durometer operation.