/ Precision Measuring Tools / Precision Hand Tools / Precision Shop Tools / Punches & Sets / 18AA * Not actual product image 50119 18AA Automatic Center Punch 50119 Other similar products The Starrett Automatic Center Punch with Adjustable Stroke features a lightweight, knurled steel handle for a positive grip and easy handling. 100mm (4") Length, 11mm (7/16") Diameter. Features Specifications Parts Downloads Contact Starrett Features Rugged automatic punches with all-steel handles and parts Internal mechanism automatically - strikes a blow when downward pressure is applied Spring tension, which regulates the blow, is constant so marks made by the point are uniform in depth and size for each setting The point can be easily removed for regrinding or replacement Adjustable knurled cap regulates the force of the blow Specifications Length (in): 4" Length (mm): 100mm Punch Diameter (in): 7/16" Punch Diameter (mm): 11mm Material: Steel Parts Member of Kit Item #DescriptionPart No.QtyInformation 10BODY, CENTER PUNCH13760-01 20CAP02946-01 30TIP13761-01 40TRIP PIN13762-01 50SPRING, .134X.228X.875X.018X9- 1/213765-01 60HAMMER, CENTER PUNCH13764-01 70SPRING,.186X.248X1.438X.031X1513766-01 80CENTER PUNCH POINT06689-01 Downloads 2D Dimensional Drawing (PDF) .pdf 26.16 kb 18AA+.svg .svg 79.25 kb Catalog 33 - Section 17 - Precision Shop Tools This section offers quality tools that do not measure, but are needed frequently in manufacturing. Tools such as work positioning tools, scribers, punches, vises and lubricant are an integral part of any shop or manufacturing industry. Precision Hand Tools (Catalog 33) 612 page catalog featuring precision hand tool, force measurement, vison systems, optical comparators, laser measurement, and flat stock.