Mitutoyo 167-161 Micrometer Setting Standard Bar 21 Inch

The Mitutoyo 167-161 is a precision micrometer setting standard bar designed for accurate zero point calibration of outside micrometers. This 21-inch length standard bar features a 0.47-inch diameter and provides a reliable reference for verifying and adjusting micrometer accuracy across its measurement range.

Key Features:

• 21-inch nominal length for calibrating large outside micrometers
• 0.47-inch diameter precision ground bar
• Flat and lapped measuring faces ensure accurate contact and repeatability
• Heat insulating handle prevents thermal expansion from body heat during handling
• Hardened and stabilized steel construction for dimensional stability
• Used for zero point setting and accuracy verification of outside micrometers

This micrometer standard is an essential calibration tool for quality control departments, inspection labs, and machine shops where maintaining micrometer accuracy is critical. The insulated handle allows for safe handling while minimizing measurement errors caused by thermal transfer from the operator's hands.