0-100mm 0.001mm Graduation Outside Micrometer Sets - 3210 Series (Insize)Designed for professional precision on the shop floor, the Insize 3210 outside micrometer set delivers repeatable 0. 001 mm readings with durable carbide measuring faces. Its ideal for toolmakers, machinists, and quality inspectors who need reliable, fine measurements across common external diameters. Range: 0100 mm measurement capacity per micrometer in the set (the 3210 family includes options up to 200 mm). Graduation: 0. 001 mm (1 m) precision for