Mitutoyo 368-877 Holtest Type II Internal Micrometer 7-8 Inch Range

The Mitutoyo 368-877 Holtest Type II is a precision three-point internal micrometer designed for accurate measurement of bore diameters, slots, and grooves. This bore gauge features a measuring range of 7 to 8 inches with exceptional resolution of 0.0002 inches, making it ideal for quality control and inspection applications.

Key Features:

• Three-point contact design with alloyed steel contact points for stable, accurate measurements
• 0.0002 inch graduation for precise readings
• Measuring range: 7-8 inches (177.8-203.2mm)
• Ratchet stop mechanism ensures constant measuring force for repeatable results
• Type II design allows measurement closer to the bottom of blind bores
• Self-centering three-point contact system eliminates the need for manual centering

The Holtest's three-point internal measuring system provides superior accuracy compared to two-point bore gauges by automatically centering in the bore. The integrated ratchet stop ensures consistent measuring pressure, reducing operator variation and improving measurement reliability. The alloyed steel contact points offer excellent wear resistance for long-term durability in production environments.