Taper hole gauge accurate figures and increments are etched into surface, easy to read Surface, bright and clean without burr, rust la ser engraved line and will not rub off Hole size gauge stainless steel, miniature and lightweight Both Inch and Metric Standard reading | Welding taper gauge: 0-15mm (0-5 / 8 inch for Ideal for measuring of cylindrical bores, hole, for size, welding for measure, Manufacturer: Bottone