Eagle Cutting Tool D250-021-D Hss Drill Bit 21/64 in

Product Description

The EAGLE CUTTING TOOL D250-021-D is a 21/64-inch high speed steel (HSS) twist drill bit designed for precision hole-making in metal, wood, and general-purpose materials. Built with a 135-degree split point geometry, this bit starts on contact without a center punch and reduces the tendency to walk on hard or slick surfaces. The Dyno Black Gold finish provides a surface treatment intended to extend tool life under repeated use. This drill bit is manufactured in the USA and suited for use by machinists, millwrights, pipefitters, and general trade professionals who require consistent, accurate drilling performance.

This drill bit is appropriate for use in hand drills, drill presses, and CNC drilling applications across residential, commercial, and light industrial settings. The 21/64-inch diameter makes it a common choice for bolt clearance holes, pilot holes, and pre-drill work on structural and mechanical assemblies. It is a direct fit for standard three-jaw drill chucks accepting fractional shank sizes in this range.

Key Features

• 135-degree split point tip reduces walking and improves starting accuracy on hard surfaces
• High speed steel (HSS) construction provides durability across a range of workpiece materials
• Dyno Black Gold surface treatment for enhanced wear resistance and reduced friction
• 21/64-inch fractional diameter suits common bolt clearance and pilot hole applications
• Manufactured in the USA

Compatibility

Designed as an OEM-style replacement or direct-use fractional drill bit compatible with standard three-jaw drill chucks accepting 21/64-inch shank sizes in hand drills, drill presses, and compatible CNC drilling equipment.

Installation Notes

Installation is performed by machinists, maintenance technicians, and trade professionals using standard drill chucks. Secure the bit firmly in the chuck before operation and verify chuck key removal prior to starting the drill. Use appropriate cutting fluid when drilling ferrous metals to reduce heat buildup and prolong bit life. Follow all applicable shop safety standards and wear eye protection during drilling operations.

Technical Specifications

• Diameter: 21/64 inches
• Point Angle: 135 degrees
• Point Type: Split Point
• Material: High Speed Steel (HSS)
• Finish: Dyno Black Gold
• Country of Origin: USA
• Weight: 1.2 pounds

Standard Information

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