Specification Brand : HARFINGTON BulletPoint1 : Size - 455mm length x 150mm width spring joint outside caliper with a max open length (capacity) of 20 inches / 500mm. BulletPoint2 : Material - Our metal calipers are forged from stainless iron, with overall heat treatment, wear resistance, durable and long service life. BulletPoint3 : Feature - The forged high-carbon steel legs feature hardened points for precise marking of the workpiece and precise fine adjustment by opening and closing the legs by means of an adjusting nut. BulletPoint4 : Application - Outside caliper is a useful measurement transfer tool for measuring the external size of round stock or irregular shaped objects, and then transferring that measurement to a ruler. BulletPoint5 : Usage - Smooth surface and burr-free, accurate measurement, can be used for a long time and not easy to loosen. Color : Silver Tone IncludedComponents : No ItemName : HARFINGTON Spring Joint Caliper 20 inch / 500mm Steel Adjustable Spring Outside Caliper with Solid Nut for Wood Turning Lathe Work ItemPackageDimensions_Height : 54.61 centimeters ItemPackageDimensions_Length : 0.1016 centimeters ItemPackageDimensions_Width : 15.24 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : joint-calipers-and-dividers Manufacturer : HARFINGTON Material : Stainless Steel MeasurementAccuracy : 0.1mm ModelNumber : ZIZEVe279u1zr8c NumberOfItems : 1 PartNumber : hta231116hh000803 ProductDescription : Our metal calipers are forged from stainless iron, with overall heat treatment, wear resistance, durable and long service life The forged high-carbon steel legs feature hardened points for precise marking of the workpiece and precise fine adjustment by opening and closing the legs by means of an adjusting nut. The outside caliper is a useful measurement transfer tool for measuring the external size of round stock or irregular shaped objects, and then transferring that measurement to a ruler. Smooth surface and burr-free, accurate measurement, can be used for a long time and not easy to loosen.