Description
INSIZE 3289-1 Large Disc Micrometer 0–1" Range 0.001" Graduation
The INSIZE 3289-1 Large Disc Micrometer is a specialized precision measuring instrument designed for measuring gear tooth root tangent length, section thickness, paper, rubber, and other narrow or hard-to-reach features. Its large disc-shaped measuring faces allow access to grooves, slots, and recessed areas where conventional flat-anvil micrometers may be difficult to use. With a measuring range of 0–1" and 0.001" graduations, it is suitable for dimensional inspection in manufacturing, machining, and quality control applications.
Featuring a durable frame with a protective green baked-enamel finish, the INSIZE 3289-1 incorporates a satin chrome-finished thimble and barrel for clear, glare-resistant scale readings. The integrated ratchet stop helps maintain consistent measuring force for repeatable results, while the heat-insulating frame cover helps reduce the influence of hand warmth during measurement.
Key Features & Benefits
- Precision large disc micrometer for specialized dimensional measurement
- Measuring range of 0–1"
- 0.001" graduation for precise measurement readings
- Large disc measuring faces for accessing narrow grooves, slots, and recesses
- Suitable for measuring gear tooth root tangent length and section thickness
- Can be used to measure paper, rubber, and other materials
- Integrated ratchet stop for consistent measuring force
- Green baked-enamel frame finish for durability and protection
- Satin chrome-finished thimble and barrel for improved scale readability
- Clear laser-etched graduations for convenient reading
- Heat-insulating frame cover helps minimize the effect of hand warmth
Technical Specifications
- Brand: INSIZE
- Model: 3289-1
- Product Type: Large Disc Micrometer
- Measuring Range: 0–1"
- Graduation: 0.001"
- Measuring Face Type: Large disc anvils
- Frame Finish: Green baked enamel
- Thimble and Barrel Finish: Satin chrome
- Scale Markings: Laser-etched graduations
- Measuring Force Mechanism: Ratchet stop
- Frame Cover: Heat-insulating cover
Applications
- Gear tooth root tangent length measurement
- Section thickness inspection
- Paper and rubber thickness measurement
- Measurement of narrow ribs, grooves, and slots
- Inspection of recessed or hard-to-reach features
- Precision manufacturing and machining
- Industrial dimensional inspection and quality control
INSIZE precision measuring instruments provide practical solutions for dimensional inspection and quality control across manufacturing, engineering, and industrial applications. The 3289-1 Large Disc Micrometer combines specialized disc measuring faces with a ratchet stop mechanism for convenient and repeatable measurements.
