vernier caliper with auto-lock Mono-block Made of stainless steel or carbon steel Four-way measurement (inside, outside, depth and step measuring) With auto-lock (big or small) According with GB/T1214.2 standard Products can be provided at clients' requests Art.No.VC003 Specification:0-100mm,0-150mm,0-200mm,0-300mm Reading : 0.02mm,0.05mm, 1/128"mm,1/1000"mm