Mitutoyo 250-301 Series 250 Micrometer Head - Digit Counter, Metric, 0 - 25 mm

The mechanical digit counter on the Mitutoyo Series 250 micrometer head displays spindle displacements numerically that is easy to see when working. The micrometer's ratchet stop mechanism provides a constant measuring force on the spindle to ensure accurate, repeatable measurements. The combination of the ratchet thimble and speeder enables a rapid spindle feed when measuring widely different dimensions and easier one-handed measurements.

Features:

• Mic head has a 18 mm / 0.71" thimble diameter
• Spindle range is 25mm / 1"
• Spindle diameter 6.35 mm / 0.25"
• Spindle pitch is 0.5 mm / 0.0197" per rev
• Mic head total length (at stroke end) mm / 6.33"
• Flat spindle faces are constructed of carbide and have lapped surfaces for more accurate measurements over time
• Scale is laser etched for easier reading with a hard chrome plating surface that resists corrosion