Satin chrome finished frame. Designed for measuring grooves, recesses
and shoulders located inside a bore. They measure not only thickness and
spacing of grooves, but also measure from an edge to a land, or from
shoulder to groove. Spindle hardened and precision ground, with
micro-lap finish on measuring face. Every thousandth is numbered for
easy reading. To measure: width of groove, width of land. To determine:
location of groove, depth of bottom of groove.
Accuracy: parallelism: 10µm.
Instrument error: ±10µm.
Metric - Graduation: 0.01mm.