The Draper Expert 02753 50-160mm Gauge Set includes gauges that can accurately measure holes and detect taper or ovality to an accuracy of 0.01mm. The set is supplied in a storage case. Draper Expert tools are designed for the tradesman's workshop. Each tool in this range has additional features that enhance its performance and is manufactured using the finest materials available. Draper Tools is a family business that has been manufacturing quality tools for the UK and beyond for over 90 years. To provide a tool that is needed, Draper's purchasing team sources innovative products.