Eagle Cutting Tool CR-7500-90-I Hss 90 Degree Countersink

Product Description

The EAGLE CUTTING TOOL CR-7500-90-I is a high-speed steel (HSS) 90-degree countersink with a three-flute design, built for creating clean, accurately angled seat recesses in metal, wood, and composite materials. At 3/4 inch in cutting diameter and fitted with a 1/2 inch shank, this tool mounts directly into standard drill chucks and milling collets without adapters. The three-flute geometry reduces chatter and produces a smoother finish than single-flute alternatives, making it a reliable choice for production drilling and precision fabrication work.

This countersink is suited for machine shop, manufacturing, and field fabrication environments where a 90-degree included angle is required for flat-head fastener seating, deburring, or chamfering operations. The 1/2 inch shank accommodates standard drill presses, CNC machining centers, and handheld power drills with appropriate chucks. It is appropriate for use by machinists, millwrights, metal fabricators, and skilled trade professionals working with ferrous and non-ferrous materials.

Key Features

• 90-degree included angle for standard flat-head fastener countersinking
• Three-flute design reduces chatter and improves surface finish quality
• High-speed steel (HSS) construction provides durability across a range of materials
• 3/4 inch cutting diameter accommodates common countersink applications
• 1/2 inch shank fits standard drill chucks and collet systems

Compatibility

Designed as a standard 90-degree HSS countersink suitable for use in drill presses, CNC machining centers, and handheld power drills equipped with a 1/2 inch or larger chuck.

Installation Notes

Installation and use should be performed by a qualified machinist or tradesperson familiar with rotating cutting tools. Secure the 1/2 inch shank firmly in the chuck or collet before operation and confirm the workpiece is clamped to prevent movement. Always operate at a spindle speed appropriate for the material being cut and the tool diameter. Wear appropriate eye protection and follow applicable shop safety standards when using rotary cutting tools.

Technical Specifications

• Cutting Diameter: 3/4 inch
• Shank Diameter: 1/2 inch
• Included Angle: 90 degrees
• Number of Flutes: 3
• Material: High-Speed Steel (HSS)
• Weight: 0.1 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: CR-7500-90-I