Tesa Brown Sharpe 00881906 Inside Micrometer 3.6-4 in

Product Description

The TESA BROWN SHARPE 00881906 is a mechanical inside micrometer designed for precise internal bore and diameter measurement in the 3.6000 to 4.0000 inch range. It features a ratchet stop thimble for consistent, repeatable measuring force and a graduated scale with 0.0002 inch increments for fine resolution. The measuring faces are hardened steel, and the instrument carries a satin chrome finish for durability and corrosion resistance. This tool is used by machinists, quality control technicians, and precision measurement professionals in manufacturing and inspection environments.

This inside micrometer is suited for measuring large internal diameters in industrial and manufacturing settings. Typical applications include bore inspection on engine cylinders, pump housings, valve bodies, and machined mechanical components where tight tolerances are critical. The 3-contact-point design provides stable seating inside a bore, reducing measurement error caused by instrument tilt. The tool includes a Declaration of Conformity and Measuring Report, supporting traceability requirements in quality-controlled environments.

Key Features

• Measurement range of 3.6000 to 4.0000 inches with 0.0002 inch graduation
• Ratchet stop thimble ensures consistent measuring force and repeatable readings
• 3-contact-point design for stable, accurate bore seating
• Hardened steel measuring faces for long service life
• Satin chrome finish resists corrosion and reduces glare
• Complies with DIN 863 T4 (C1) and NF E 11-099 standards
• Includes Declaration of Conformity and Measuring Report for traceability

Compatibility

Designed for internal diameter measurement applications in the 3.6000 to 4.0000 inch range. Compatible with standard 3-contact inside micrometer extension rod systems; maximum extension rod length is 15.0000 inches and measuring depth with one extension is 9.0000 inches.

Installation Notes

This instrument is handled and calibrated by metrology technicians or qualified machinists. Before use, zero the micrometer using a certified setting ring or reference standard appropriate to the measuring range. Keep measuring faces clean and free of debris to maintain accuracy. Store in the provided case away from heat sources and magnetic fields to prevent dimensional drift.