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The EAGLE CUTTING TOOL A712-130-I is a No. 30 high-speed steel (HSS) aircraft extension drill with a 12-inch overall length (OAL). Designed for deep-reach drilling applications where standard-length bits cannot access the work area, this drill is built from HSS for durability across a range of materials including aluminum, mild steel, and composite panels. At 0.07 pounds, it is lightweight enough for sustained overhead or confined-space work. It is typically installed and operated by aircraft maintenance technicians, sheet metal workers, and industrial maintenance professionals requiring extended reach in tight or deep assemblies.
This drill is suited for aerospace, aviation maintenance, and general metalworking applications where a No. 30 diameter hole is required at depth. The 12-inch OAL makes it particularly useful when drilling through structural assemblies, wing skins, fuselage panels, or deep fabrication fixtures where a standard jobber-length drill cannot reach. It is also used in HVAC and mechanical trades for drilling through deep structural members or framing.
Designed as an OEM-style replacement or direct-use aircraft extension drill compatible with standard drill chucks accepting wire gauge shank sizes in the No. 30 range.
This drill is typically used by aircraft maintenance technicians, sheet metal fabricators, and industrial tradespeople using hand-held or pneumatic drill motors with compatible chucks. Secure the workpiece firmly before drilling and use appropriate cutting fluid when working through steel or hard alloys to extend drill life. Inspect the drill tip for wear or chipping before each use, as a damaged cutting edge increases the risk of bit breakage in deep-reach applications. Always follow applicable shop safety procedures and wear appropriate eye protection.
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