Value Collection GH8780322 Counterbore 0.5in 3 Flutes

Product Description

The VALUE COLLECTION GH8780322 is a 3-flute interchangeable pilot counterbore designed for precision counterboring operations in metalworking applications. Built from high speed steel with a bright, uncoated finish, this tool delivers reliable cutting performance on ferrous and non-ferrous materials. The 1MT Morse taper shank provides a secure, self-locking connection in compatible drill press and milling machine spindles. With a 0.5 inch counterbore diameter and a 4.3125 inch overall length, this tool is suited for production and maintenance shop environments where consistent, repeatable results are required.

This counterbore is intended for use in machine shops, maintenance facilities, and production environments where counterbored holes are required for socket head cap screws and similar fasteners. The interchangeable pilot design accepts a 3/16 inch pilot shank, allowing the operator to swap pilots as needed without replacing the body. Right-hand cutting geometry is standard for use with conventional spindle rotation.

Key Features

• 0.5 inch counterbore diameter sized for common socket head fastener applications
• 3-flute geometry for balanced cutting and improved chip evacuation
• High speed steel construction for durability across a range of workpiece materials
• 1MT Morse taper shank for self-locking fit in compatible spindles
• Interchangeable pilot accepts 3/16 inch pilot shank diameter
• Bright uncoated finish for easy visual inspection of cutting edge condition

Compatibility

Designed for use in drill presses, milling machines, and similar machine tool spindles equipped with a Number 1 Morse taper (1MT) socket. Accepts a 3/16 inch interchangeable pilot shank.

Installation Notes

Installation and use of this tooling should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully de-energized and at rest before inserting or removing the taper shank. Clean the spindle socket and taper shank thoroughly before seating to ensure proper contact and prevent runout. Always verify pilot shank fit and tool projection before beginning a cut.