Value Collection GH8792004 Counterbore 2in 5 Flute Hss

Product Description

The VALUE COLLECTION GH8792004 is a 5-flute interchangeable pilot counterbore designed for precision counterboring operations in metalworking and machining applications. Built from high speed steel with a bright uncoated finish, this tool delivers clean, accurate seat cuts around existing holes. The 2-inch cutting diameter and 1-1/2-inch straight shank make it suitable for use in heavy-duty drill presses, milling machines, and CNC setups where a secure, slip-resistant shank fit is required. The interchangeable pilot design allows the operator to swap pilots for different fastener clearance sizes without replacing the body, extending tool utility across multiple job requirements.

This counterbore is used in industrial and manufacturing environments where socket head cap screws, bolts, or similar fasteners must sit flush or below the workpiece surface. It is appropriate for ferrous and non-ferrous metal stock. The right-hand cutting direction is standard for conventional spindle rotation. Machinists, toolroom technicians, and maintenance mechanics are the typical end users. The tool is sold individually and is well suited to job shops and production floors that require a large-diameter counterbore with a robust shank and multi-flute chip clearance.

Key Features

• 2-inch counterbore diameter for large fastener seat applications
• 5 flutes provide increased cutting edges and improved chip evacuation
• 1-1/2-inch straight shank for positive chuck or collet engagement
• High speed steel construction handles ferrous and non-ferrous workpieces
• Bright uncoated finish suitable for use with cutting fluids
• Interchangeable pilot accepts 1/2-inch pilot shank for flexible fastener sizing
• Right-hand cutting direction matches standard spindle rotation

Compatibility

Designed for use with 1/2-inch interchangeable pilots. Compatible with drill presses, milling machines, and machining centers equipped with a chuck or collet sized for a 1-1/2-inch straight shank.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before securing or removing the tool. Ensure the shank is fully seated and clamped in the chuck or collet to the machine manufacturer's specifications before operation. Use an appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality.