The Starrett 18AA automatic center punch with adjustable stroke is 4″ long with a 7/16″ (11 mm) diameter for creating a starter dimple without the need for a hammer. The punch has an adjustable stroke, which can also be set by turning the knurled cap and is regulated by spring tension for uniform dimple size at each and every setting. The punch is made from hardened and tempered steel components that provide wear resistance and strength. It has a round care for that may be knurled for grip. The point can also be got rid of for replacement or sharpening.
Center punches make small dimple marks in a workpiece to lend a hand guide a drill bit. Manual center punches have a metal shank with a point and are generally tapped with a ball-peen hammer to mark the material. Automatic center punches have an internal spring mechanism that enables them to mark the material without the use of a hammer, leaving one hand free for steadying the work.
The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company, founded in 1880, is headquartered in Athol, MA.
Automatic center punch with 4″ length and 7/16″ diameter punches a starter dimple without the need for a hammer
Stroke have an effect on can also be adjusted by turning knurled cap
Spring tension regulates stroke for uniform dimple size at every setting
Hardened and tempered steel components provide wear resistance and strength
Point can also be got rid of for replacement or sharpening
Steel is hardened and tempered
Knurled finger grips for ease of handling