Digital Multi-Anvil Micrometer, Range 0 in to 1 in, Resolution 0.001 in, Accuracy +/-0.0001 in, SPC Output No, Long Form Calibration Certificate No, Anvil Shape Interchangeable, Anvil Size 0.120 in, 0.125 in x 0.060 in, Coolant Resistant No, Dimension Type Inch, Operation Type Mechanical, Thimble Type Ratchet, Anvil Material Steel, Case Included Yes, Frame Material Steel, Includes Spanner Wrench, Lock Nut Type Ring, Maximum Measurement - Inch 1 in, Minimum Measurement - Inch 0 in
Starrett 220 Series Mul-T-Anvil Micrometers are a new development in micrometer design and the patent is held by Starrett. This micrometer will handle a wide variety of measurements impossible to obtain with regular micrometers, such as measuring the wall thickness of tubing, cylindrical walls from a hole or slot to an edge, many hard-to-reach locations, and the thickness of screw heads, shoulder lengths, etc. A most interesting feature of this tool is that additional anvils of various shapes can be made up and many of these anvils do not have to be hardened for that "special job".