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The EAGLE CUTTING TOOL 1090-122-I is a high speed steel (HSS) slow drain (SD) drill bit with a 1-11/32 inch cutting diameter and a 1/2 inch reduced shank. Built for demanding drilling applications, this import-grade bit delivers consistent cutting performance in steel, cast iron, aluminum, and similar materials. The 1/2 inch shank is sized for standard drill chucks and magnetic drill press setups. At 1.2 pounds, it is a solid, full-size bit suited for trade use in fabrication, mechanical, plumbing, and electrical work where large-diameter holes are required.
This drill bit is appropriate for use in professional shop and field environments where a large-diameter hole is needed in metal or wood substrates. Electricians, plumbers, pipefitters, and HVAC technicians commonly use large-diameter HSS bits for conduit knockouts, pipe penetrations, and equipment mounting holes. The 1-11/32 inch diameter makes it well suited for specific knockout or bore sizes that standard step bits cannot reach.
Designed as a general-purpose large-diameter HSS drill bit compatible with any drill press, magnetic drill, or hand drill equipped with a 1/2 inch or larger chuck.
This bit is installed and operated by machinists, electricians, plumbers, and HVAC technicians using standard drill equipment. Secure the workpiece firmly before drilling and use appropriate cutting fluid when drilling through ferrous metals to extend bit life and reduce heat buildup. Always wear appropriate eye and hand protection. Follow applicable workplace safety codes when operating large-diameter drill bits at speed.
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