The Clarke 6in. Dial Vernier Caliper features a dial &Quot;zero&Quot; point that can be manually set for specific applications. Locking knob allows for easy, quick batch measurements. Precision engineered from high-grade stainless steel. Clarke precision measuring tools deliver precise, accurate, reliable measurements every time. Caliper Type: Vernier, Jaw Size (in.): 1, Length (in.): 6, Measures: SAE, Range (in.(mm)): .001in., Capacity: 6in., Display Type: Dial, Material: Stainless steel, Single, Pair, or Set: Single, Case Included: Yes Accurate to ± 0.001in. Dial display in SAE 6in. jaw capacity Nylon carrying case