Starrett 124MBZ Solid Rod Vernier Inside Micrometers Set, 50 300 mm Range, 0.01 Graduation, +/ 0.003" Accuracy, With Case

ManoMano

Lightweight and ideal for measuring inside diameters, the rods are solid, insulated and assembled on one side of the micrometer Head. Anvils on rods are adjustable for length. Rod and anvils are hardened and ground. Furnished in an attractive protective case. Size: 50-300mmGauge: 12mmScrew adjustment: 13mmGraduation: 0.01mm

Amazon

Rods marked with length and adjustable from 50 mm to 300 mm Micrometer head sits on shoulder of rods to lock in position, ensuring accuracy Hardened and ground anvils on 6 mm diameter solid rods, for accuracy Includes one 12 mm spacing collar Lightweight

Zoro Tools

Satin chrome finish on heads. Each rod marked with length. Hardened and ground anvils on rods. Head anvil hardened and ground. Cased.