Ideal for accurately measuring holes, slots, grooves and recesses when used in conjunction with a micrometre. Set of four gauges ranging from 3mm (0.125") up to 13mm (0.5"). Knurled handles with smooth adjustment provide secure and accurate handling. Safety stop feature prevents gauge From being adjusted beyond operating range to prevent breakage. Supplied in marked storage pouch., Weight: 0.20282528104 Pounds, Manufacturer: Sealey