Eagle Cutting Tool CR-5000-90-I Hss 90 Deg Center Reamer

Product Description

The EAGLE CUTTING TOOL CR-5000-90-I is a high-speed steel (HSS) 90-degree center reamer designed for precision countersinking and center-hole finishing in metal workpieces. The tool features a 1/2-inch cutting diameter and a 3/8-inch shank, with a 3-flute cutting geometry that promotes chip evacuation and a cleaner finish in the bore. The impregnated construction adds lubricity to the cutting edges, reducing heat buildup during operation. This reamer is suited for machinists and tool-and-die professionals working with drill presses, manual mills, or CNC equipment where accurate 60-degree or 90-degree center seats are required.

This center reamer is used in metal fabrication shops, maintenance and repair operations, and production machining environments. The 90-degree included angle makes it appropriate for countersinking fastener seats, deburring drilled holes, and finishing center holes on turned parts. The 3/8-inch shank fits standard drill chucks and collet holders common in both benchtop and floor-standing machines. Applications typically span ferrous and non-ferrous metals where center-hole accuracy and surface finish are critical to downstream operations such as between-centers turning or alignment.

Key Features

• 90-degree included angle suits standard countersink and center-hole finishing work
• High-speed steel (HSS) construction provides hardness and wear resistance across common metal types
• 3-flute design promotes chip clearance and reduces chatter in the cut
• Impregnated cutting edges provide built-in lubricity to extend tool life and reduce heat
• 1/2-inch cutting diameter paired with a 3/8-inch shank for broad chuck compatibility
• Minimum order quantity of 1 — available as a single unit

Compatibility

Designed for use in standard drill chucks and collet holders accepting a 3/8-inch shank. Suitable for drill presses, manual mills, and CNC machining centers where 90-degree center reamers are required.

Installation Notes

Installation is performed by machinists or tooling technicians familiar with rotating cutting tools. Secure the 3/8-inch shank firmly in a drill chuck or collet holder before starting the spindle. Ensure the workpiece is clamped securely to prevent movement during reaming. Disengage power to the machine and allow the spindle to come to a full stop before removing or changing the tool.

Technical Specifications

• Cutting Diameter: 0.5 inches
• Shank Diameter: 0.375 inches
• Angle: 90 degrees
• Number of Flutes: 3
• Material: High-Speed Steel (HSS)
• Construction: Impregnated
• Weight: 0.1 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: CR-5000-90-I