Eagle Cutting Tool 1212XL-021-I Hss Longboy Drill 21/64 in

Product Description

The EAGLE CUTTING TOOL 1212XL-021-I is a high-speed steel (HSS) longboy drill bit engineered for deep-hole drilling applications where standard-length bits fall short. With a 21/64 inch cutting diameter and a 12 inch overall length (OAL), this extended-reach bit handles deep bores through wood, plastic, and ferrous metals in a single pass without the need for extensions. It is suited for use by professional tradespeople, machinists, and industrial maintenance technicians who require consistent cut quality at extended depths.

This longboy drill bit is designed for applications demanding extra reach, such as drilling through thick structural members, deep fixture work, or confined-access installations where a standard jobber-length bit cannot reach the target depth. The 21/64 inch diameter makes it a common choice for clearance holes and pilot holes in mechanical and construction assemblies. It is used in both shop and field environments across HVAC, plumbing, electrical, and general construction trades.

Key Features

• 21/64 inch cutting diameter for precise clearance and pilot hole sizing
• 12 inch overall length provides extended reach for deep-hole drilling
• High-speed steel (HSS) construction resists heat buildup during drilling
• Longboy geometry maintains straight entry over deep bore lengths
• Minimum order quantity of 1 — available as a single unit

Compatibility

Designed as an OEM-style replacement and standard fitment extended-length drill bit compatible with 3/8 inch and 1/2 inch keyed or keyless drill chucks on corded and cordless drill drivers and drill presses.

Installation Notes

Installation is performed by machinists, maintenance technicians, and trade professionals using standard drill chucks rated for the shank diameter. Ensure the bit is fully seated and secured in the chuck before operation. Reduce feed rate at the start and end of the bore to prevent bit walking and workpiece breakout. Always wear appropriate eye protection and secure the workpiece before drilling.

Technical Specifications

• Cutting Diameter: 21/64 inch
• Overall Length (OAL): 12 inches
• Flute Length: 9 inches
• Material: High-Speed Steel (HSS)
• Weight: 0.24 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1212XL-021-I