Chicago-latrobe 11017 Aircraft Extension Drill Bit 19/64 in

Product Description

The CHICAGO-LATROBE 11017 is an aircraft extension drill bit engineered for precision drilling in tight or deep-access applications. Built from high speed steel (HSS) with an oxide finish, it features a 19/64 inch (0.2969 inch) diameter, a 135-degree split point for self-centering entry, and a spiral flute design that promotes efficient chip evacuation. The 6-inch overall length and 3-1/16 inch flute length give technicians the reach needed for airframe, structural, and industrial drilling tasks where standard-length bits fall short. This bit is part of the Series 906 and conforms to NAS 907 Type B standards.

This drill bit is suited for general-purpose drilling in metal fabrication, aerospace maintenance, and industrial assembly environments. Its right-hand cutting direction, straight cylindrical shank, and web-thinned tapered web construction make it compatible with standard drill chucks used in both hand-held and drill press setups. Typical applications include drilling through aluminum, mild steel, and other ferrous and non-ferrous materials where extended reach and accurate hole placement are required.

Key Features

• 135-degree split point provides self-centering start without a center punch
• Web-thinned tapered web reduces thrust and improves cutting efficiency
• 6-inch overall length delivers extended reach for deep or obstructed work areas
• High speed steel construction with oxide finish for corrosion and heat resistance
• 2-flute spiral design promotes chip clearing during extended drilling cycles
• Meets NAS 907 Type B standards for aerospace and industrial use

Compatibility

Designed as a general-purpose aircraft extension drill bit conforming to NAS 907 Type B specifications, suitable for use with standard straight-shank drill chucks in hand drills, right-angle drills, and drill presses.

Installation Notes

Secure the straight cylindrical shank fully in a properly rated drill chuck before use. Verify spindle speed is appropriate for the material being drilled and the 19/64 inch diameter. Keep cutting edges sharp and apply appropriate cutting fluid when drilling ferrous metals to extend tool life. Inspect the bit for wear or chipping before each use and replace if cutting performance degrades.