Calipers are a very precise tool for measurements able to give exact readings of the width of screws gaps in materials holes and more they are a fantastic addition to any toolbox and a must have for most homes or workshops reading parts matt chrome plated din 862 thumb clamp and locking screw crosses 4 way measurement threading table measuring range 150 mm 6 inches snap length 40 mm 157 inches reading 005 mm 1128 inch depth of cut angular made from stainless