General Tools 142 dial caliper is made of state of the art reinforced plastic. Its internal, external, depth and shoulder measuring ranges are 0-6" in .01" and 64th inch graduations. Caliper features a contrasting color-coded scale, no-glare easy-to-read dial with adjustable bezel, freewheeling friction roller, inch and metric scales on the bar rule with a fractional conversion table on the back. General Tools - the precise tool for doing the job exactly right. Offering over 1, 000 tools, we’re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools. For inquiries, please contact our Customer Service Department at 212-431-6100. We strive to provide our customers with 100% satisfaction. Work smarter, measure better & be more productive with General Tools