Eagle Cutting Tool MCS-6250-82-4-I 5/8 in 82 Deg 4 Flute Hss

Product Description

The EAGLE CUTTING TOOL MCS-6250-82-4-I is a 5/8 inch high-speed steel (HSS) countersink with an 82-degree included angle and a 4-flute cutting geometry. It is designed to produce clean, precise countersunk holes in metal, wood, and composite materials, allowing fastener heads to seat flush or below the work surface. The 4-flute design distributes cutting load evenly, reducing chatter and improving surface finish in the countersink bore. Licensed tradespeople and machinists reach for this style of tool when consistent, repeatable results are required across production or service work.

This countersink is suited for use in metal fabrication, HVAC duct and panel work, electrical enclosure assembly, plumbing fixture installation, and general mechanical maintenance. The 82-degree angle matches the standard included angle for flat-head machine screws commonly used in North American trade applications. It is compatible with standard drill presses, hand drills, and milling machine setups. The import-grade HSS construction makes it a practical choice for shops and service vans where tooling cost and availability are a consideration.

Key Features

• 5/8 inch body diameter sized for larger countersink applications
• 82-degree included angle matches standard flat-head fastener geometry
• 4-flute cutting edge reduces chatter and improves bore finish
• High-speed steel (HSS) construction provides durability across ferrous and non-ferrous materials
• Compatible with standard drill chuck setups — no special tooling required

Compatibility

Designed as an OEM-style replacement or stock countersink for use in standard drill presses, hand drills, and milling machines accepting 4-flute HSS countersink tooling with a 5/8 inch diameter and 82-degree angle.

Installation Notes

This countersink is installed by a machinist, fabricator, or qualified tradesperson using a standard drill chuck. Secure the shank firmly in the chuck before operation and verify the work piece is clamped or fixtured to prevent movement. Use appropriate cutting fluid or lubricant when countersinking steel or harder alloys to extend tool life. Follow applicable shop safety practices and wear appropriate eye protection during use.

Technical Specifications

• Diameter: 5/8 inches
• Included Angle: 82 degrees
• Number of Flutes: 4
• Material: High-Speed Steel (HSS)
• Weight: 0.35 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: MCS-6250-82-4-I