Set of 4 precision outside micrometers with tips for measuring external dimensions from 0 to 4 inches. Each micrometer delivers 0.0001 inch accuracy for reliable, repeatable readings. This 4 piece set includes units with specific sub ranges: 0-1 in, 1-2 in, 2-3 in, and 3-4 in, covering the full 0 to 4 inch span without gaps. Ideal for industrial applications where tight tolerances matter. The outside micrometers are designed to provide accurate readings for a variety of workpiece sizes within the given range, supporting consistent measurements and quality control. Key benefits - High precision: 0.0001 inch accuracy for precise dimension checks - Wide coverage: four units cover 0 to 4 inches with clear sub ranges - Reliable performance for repeatable measurements in production settings - Easy to use with included tips for accurate contact Use scenarios - Inspect shaft and bearing diameters on a machining or assembly line - Verify bore and external feature sizes during manufacturing QA - Check part fit and clearance during automotive or mechanical assembly Note: This description maintains the original product scope and function, focusing on measurement range, accuracy, and industrial suitability.