Mitutoyo 111-166 Mechanical Spline Micrometer 0-1 Inch .001 Inch Resolution

The Mitutoyo 111-166 is a precision mechanical spline micrometer designed for measuring splined shafts, slots, keyways, and other hard-to-reach narrow spaces. With a measuring range of 0-1 inch and a resolution of .001 inch (0.001"), this specialized measuring tool delivers accurate measurements in applications where standard micrometers cannot reach.

Key Features:

• Small diameter anvil and spindle tips designed specifically for measuring splined shafts, slots, and keyways
• Ratchet stop mechanism ensures consistent measuring force for repeatable, accurate readings
• Steel measuring tips provide durability and wear resistance
• 0.001 inch (.001") resolution for precise measurements
• 0-1 inch measuring range
• Supplied in fitted plastic storage case for protection and organization

This spline micrometer is ideal for machinists, toolmakers, and quality control professionals who need to measure narrow features and internal dimensions that standard micrometers cannot access. The ratchet stop ensures consistent force application, reducing operator variation and improving measurement reliability.