Value Collection GH8840589 Counterbore 29/32 in 4 Fl Hss

Product Description

The VALUE COLLECTION GH8840589 is an interchangeable pilot counterbore designed for precision counter-boring operations in metalworking and fabrication environments. Built from high speed steel, this tool delivers consistent cutting performance across a range of materials. It features a 29/32-inch counterbore diameter, a 1/4-inch straight shank, and four flutes configured for right-hand cutting. The 3.125-inch overall length suits standard machining setups. The bright, uncoated and polished finish allows operators to visually inspect cutting edge condition at a glance. Machinists and maintenance technicians working in aircraft-style applications will find this tool sized and configured to meet those specific workflow requirements.

This counterbore is suited for use in machine shop, aerospace, and general metalworking environments where a counterbore of 29/32-inch diameter is required. The interchangeable pilot design supports flexible setups by allowing pilot replacement without replacing the full tool body. A 3/16-inch pilot shank diameter compatibility makes it appropriate for applications where that pilot size is standard. The aircraft-style designation indicates compliance with tooling configurations common in aerospace fabrication and MRO work.

Key Features

• 29/32-inch counterbore diameter for precise seat cutting
• 1/4-inch straight shank for compatibility with standard tool holders
• Four flutes for efficient chip evacuation during right-hand cutting
• High speed steel construction for durability across common workpiece materials
• Interchangeable pilot design allows pilot swaps without replacing the counterbore body
• Bright, polished finish for easy visual inspection of cutting edges

Compatibility

Designed as an OEM-style replacement or direct-use tool for applications requiring a 29/32-inch interchangeable pilot counterbore with a 3/16-inch pilot shank diameter compatibility and a 1/4-inch straight shank.

Installation Notes

Installation and use of this counterbore should be performed by qualified machinists or tool and die personnel familiar with rotating cutting tools. Secure the straight shank firmly in a drill press, milling machine, or hand-held power tool chuck before operation. Ensure the workpiece is clamped or fixtured to prevent movement during cutting. Always disconnect power or lock out the machine before changing pilots or inspecting the cutting edges.