Eagle Cutting Tool D250-021-I Hss Drill Bit 21/64 Inch

Product Description

The EAGLE CUTTING TOOL D250-021-I is a 21/64 inch high-speed steel (HSS) drill bit designed for precision hole-making in metal, wood, and general-purpose materials. Built with a 135-degree split point, it self-centers on contact to reduce walking and improve starting accuracy without a center punch. The black and gold surface finish is typical of Dyno BG-series bits, providing added surface hardness and heat resistance. This bit is suited for use in hand drills, drill presses, and CNC drilling operations across light fabrication and trade service applications.

This drill bit is appropriate for residential and commercial trade work where accurate, clean-entry holes are required in ferrous and non-ferrous materials. Electricians, plumbers, HVAC technicians, and general contractors reach for HSS bits like this when drilling through sheet metal, steel pipe, brackets, and structural framing. The 21/64 inch diameter fills a common need between standard fractional sizes, making it useful for bolt clearance holes and conduit knockout work.

Key Features

• 21/64 inch diameter HSS construction for durability across a wide range of materials
• 135-degree split point self-centers and reduces drill walk on smooth or curved surfaces
• Dyno BG black and gold finish adds surface hardness and extends tool life under heat
• Compatible with standard drill chucks on hand drills, drill presses, and CNC equipment
• Minimum order quantity of 1 unit for flexible purchasing

Compatibility

Designed as a general-purpose HSS drill bit suitable for use with standard 3-jaw drill chucks across hand drills, benchtop drill presses, and light-duty CNC drilling setups.

Installation Notes

Secure the bit firmly in the chuck before operation and verify the drill is set to an appropriate speed for the material being drilled — harder materials require lower RPM. Wear appropriate eye protection and secure the workpiece to prevent spinning. Avoid applying excessive lateral force, which can snap smaller-diameter bits. Lubricate the cutting edge when drilling ferrous metals to reduce heat buildup and extend bit life.

Technical Specifications

• Diameter: 21/64 inch
• Point Angle: 135 degrees
• Point Type: Split Point
• Material: High-Speed Steel (HSS)
• Finish: Black and Gold (Dyno BG)
• Weight: 1.2 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: D250-021-I