Eagle Cutting Tool A700-021-I Hss Aircraft Drill 21/64

Product Description

The EAGLE CUTTING TOOL A700-021-I is a high-speed steel (HSS) aircraft-length drill bit designed for extended-reach drilling applications in metal, aluminum, and composite materials. With a 21/64 inch diameter and a 6 inch overall length (OAL), this bit provides the reach needed to drill through deep workpieces, structural assemblies, and stacked materials where standard-length bits fall short. The HSS construction delivers the hardness and wear resistance required for repetitive drilling in production and maintenance environments. Machinists, aircraft maintenance technicians, and metalworking professionals reach for this format when clearance and depth are both critical factors.

Aircraft-length drill bits like the A700-021-I are used wherever standard jobber-length bits cannot reach — deep structural members, fuselage frames, HVAC ductwork fabrication, sheet metal assemblies, and general metalworking setups. The 21/64 inch diameter is a common size for clearance holes, fastener pilot holes, and stepped drilling sequences. This bit is suited for use in both handheld drill motors and drill press setups across shop, field, and MRO (maintenance, repair, and overhaul) environments.

Key Features

• 21/64 inch diameter for clearance and pilot hole applications
• 6 inch overall length provides extended reach beyond standard jobber-length bits
• High-speed steel (HSS) construction for hardness and wear resistance in metal drilling
• Aircraft-length format suited for deep structural and stacked-material drilling
• Minimum order quantity of 1 — available as a single unit

Compatibility

Designed as an aircraft-length HSS drill bit for use with standard drill chucks accepting 21/64 inch shank diameters, compatible with handheld drill motors and stationary drill press equipment in metalworking and MRO applications.

Installation Notes

Aircraft drill bits should be installed in a properly rated drill chuck and secured firmly before use. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and improve hole quality. Inspect the cutting edges for wear or damage before each use and replace the bit if chipping or dulling is observed.

Technical Specifications

• Diameter: 21/64 inch
• Overall Length (OAL): 6 inches
• Material: High-Speed Steel (HSS)
• Weight: 0.24 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: A700-021-I