Mitutoyo 368-916 Inside Micrometer Set 6 Piece Tin

Product Description

The MITUTOYO 368-916 is a 6-piece mechanical inside micrometer set designed for precise internal bore and hole measurements. It covers a measurement range of 0.275 to 0.500 inches using a 3-contact-point design, which distributes contact pressure evenly for repeatable readings. The solid carbide measuring faces deliver accuracy to 0.0001 inches and resist wear over extended service life. A friction ratchet stop thimble controls measuring force consistently, reducing operator-to-operator variation. This set is suited for machinists, tool and die technicians, quality control inspectors, and maintenance professionals requiring reliable small-bore measurement in production or field environments.

The 368-916 is used for measuring small internal diameters in residential and commercial maintenance, precision machining, and mechanical inspection applications. The set includes two setting rings sized at 0.350 and 0.500 inches, which are used to zero and verify the instrument before measuring. A fitted plastic case protects all components during storage and transport. The TiN finish on the measuring surfaces adds an additional layer of hardness and corrosion resistance, making the set suitable for demanding shop environments.

Key Features

• Solid carbide measuring faces for wear resistance and long service life
• Friction ratchet stop thimble ensures consistent measuring force and repeatable results
• 3-contact-point design for stable, centered readings in bores
• TiN finish adds surface hardness and corrosion resistance
• Includes 2 setting rings (0.350 and 0.500 inches) for calibration verification
• Fitted plastic case included for organized storage and transport

Compatibility

Designed as a self-contained inside micrometer set for measuring internal diameters in the 0.275 to 0.500 inch range. Compatible with standard micrometer calibration and inspection workflows.

Installation Notes

This instrument does not require installation but should be zeroed against the included setting rings before each measurement session. Ensure hands and measuring surfaces are clean and free of oils or debris prior to use to avoid measurement error. Store the set in the fitted plastic case when not in use to protect the carbide faces and calibrated components from impact damage.