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The IRWIN 63526 is a heavy-duty high speed steel (HSS) drill bit sized at 13/32 inch. High speed steel construction allows the bit to handle both wood and metal drilling applications without losing its edge under the friction and heat generated during use. This type of bit is a standard tool for licensed contractors, electricians, plumbers, and HVAC technicians who need reliable, consistent hole quality in structural and mechanical work. The 13/32-inch diameter is commonly used for conduit knockouts, fastener clearance holes, and pilot drilling in sheet metal or dimensional lumber.
This bit is suited for use in residential and light commercial construction and service work. Electricians reach for 13/32-inch bits when drilling for conduit fittings or outlet boxes. Plumbers use this diameter for pipe-clearance holes through framing. HVAC technicians use it for sheet metal work and equipment mounting. It fits standard 3-jaw chucks on corded and cordless drills and drill presses.
Designed as an OEM-style replacement and standard-use drill bit for trade professionals requiring a 13/32-inch HSS bit in any standard drill chuck application.
Secure the workpiece before drilling to prevent movement and bit breakage. Use appropriate cutting fluid or lubricant when drilling through ferrous metals to extend bit life and improve hole quality. Follow OSHA and applicable jobsite safety requirements for rotating tool use, including proper eye protection. Inspect the bit for wear or damage before each use and replace if the cutting edges are dull or chipped.
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