Genex Stainless Steel Vernier Caliper DVC-150-79 This is high quality digital vernier caliper made of real stainless steel of 4CR13 grade. Great workmanship and smooth usage is the unique function of this particular piece onAmazon. It sports perfect V groove, perfectly aligning jaws, double plate for ruler,smooth sliding and accurate readings. Technical Specifications: Measuring Range : 0-6 inch/150mm 13mm x 38mm Large LCD screen Inch/mm conversion Accuracy: ±0.001"/0.03mm Resolution: 0.0005"/0.01mm Repeatability: 0.0005"/0.01mm Package Includes: 1 x Digital Vernier Caliper 1 x Durable plastic box 1 x installed 1.5V battery 1 x instruction manual Beware: Lots of listings and lots of sellers claim to supply stainless steel calipers, but what isactually shipped in zinc alloy or other cheap metal which is rough to use andhas a low life durability.