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The STANLEY 16-228 is a 5/16-inch center punch designed for marking drill start points on metal, wood, and other hard surfaces. Center punches create a small indentation that seats a drill bit at the intended location, preventing bit walk during the start of a hole. This tool is a hand-strike type, driven by a hammer or mallet to produce a clean, accurate dimple. Machinists, pipefitters, electricians, and general tradespeople keep center punches in regular rotation for layout and fabrication work. At 0.24 pounds, the 16-228 is a lightweight, single-piece hand tool suited for both shop and field use.
The STANLEY 16-228 is appropriate for use in any trade application requiring accurate hole layout. Common scenarios include marking conduit knockout positions, locating anchor bolt holes in structural steel, and setting drill points on HVAC equipment panels or brackets. The 5/16-inch tip diameter makes it suitable for standard layout tasks across residential and light commercial jobsites.
Designed as a general-purpose hand tool suitable for use on metal, wood, and composite surfaces in standard trade layout and fabrication applications.
A center punch is a hand tool requiring no power source or fastening. Strike the top of the punch squarely with a ball-peen or claw hammer to produce a clean indentation. Eye protection should be worn during use to guard against metal chips or scale. Inspect the tip before use and replace the tool if the tip is mushroomed or damaged.
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