Pocket tape measure with window type 4689

Design: Free-running tape made of convex and hardened spring band steel, painted white, in an impact-resistant polyamide housing. Direct reading of the internal dimensions due to very large viewing window with magnifying effect. Graduation in the window is not on the head. The mm-duplex graduations are baked in clear lacquer to protect them from wear. Moveable end fitting for inner and outer measurements. Measuring accuracy according to EC accuracy Class II.