The Moore & Wright Traditional External Micrometer has a blue textured frame finish with tungsten carbide measuring faces and a tapered bow frame. The 'speeder' type ratchet, locking lever and adjusting key make this micrometer easy to use. It has a 6.5mm spindle diameter. The micrometers are manufactured to BS870, DIN 863/1, ISO 361 standards. Supplied in plastic pocket case.