Starrett Telescoping Gage, Self-Centering with Two Arms - Ideal for Determining True Size of Holes, Slots and Recesses - 1-1/4" - 2-1/8" Range, 2-3/8" Handle Length - 579D

The Starrett 579 Telescoping Gage is used for determining the true size of holes, slots, and recesses up to 6" (150mm). The ends of both contacts are hardened and ground to a radius to allow proper clearance on the smallest hole the gage will enter. The tool must be slightly rocked in the hole being measured to ensure that the tool is on the proper diameter before it is locked and withdrawn. The final hole size is obtained by measuring over the gage contacts with a micrometer. 1 1/4-2 1/8" (32-54mm) Range, 2 3/8" (60mm) Handle. Hole gages help determine the diameter of a hole. While their function is similar to bore gages, they are less precise, much simpler tools that require measurement of a transferred dimension. Starrett Precision Hand Tools have been the standard for high quality dimensional measuring tools. The L.S. Starrett Company, founded in 1880, manufactures more than 5,000 variations of Precision Tools, Gages, Measuring Instruments and Saw Blades for industrial, professional and consumer markets worldwide.

• Best Performance - The Starrett 579 Telescoping Gage is the perfect tool for determining the true size of holes, slots, and recesses up to 6" (150mm). This tool will become an indispensable tool in your arsenal.
• Precision Ground Radius - Each gage is precision ground with a radius, providing two-point contact for maximum accuracy. This makes sure that the measurement you take is precise and consistent every time.
• Durable Construction - The telescoping gage is made from highest quality material ensuring that it will last through even the most rigorous use. It can handle any job you throw at it, making it a versatile tool for your workshop.
• Automatically Self-Centering Handles - The handles are rigidly attached to the contact plungers and are automatically self-centering. This ensures that the contacts are always in the proper position, regardless of how you hold the gage.
• The Standard for Excellence - Manufacturing quality tools that provide consistent and reliable performance since 1880, Starrett's commitment to product excellence, has earned them a reputation as one of the most trusted names in the industry.