Fixed Caliper Set Indoor Outdoor 1000mm 39 Inch Stainless Steel 410 Fixed Joint Friction For External Internal Measurements

Size - Inner and outer compass 1000 mm 39 inches. Material - Our fixed joint compasses are forged from 410 stainless steel, with overall thermal operation, low magnetic, corrosion resistant, high hardness, high torque and good resilience. Feature - Smooth surface and no burrs, accurate measurement, can be used for a long time and not easy to loosen. Application - Outer compasses measure the external dimensions, thicknesses and outer diameters of objects. Inner compasses measure the inner diameter or groove width of cylindrical holes. Use - The fixed joint compass uses a friction joint to hold the branches still, adjust the compass to a scale dimension, one branch of the compass must be held firmly against one end of the ladder and the other branch adjusted to the desired dimension.