Value Collection GH8815383 Counterbore 19/32 in 3 Flute

Product Description

The VALUE COLLECTION GH8815383 is a 3-flute interchangeable pilot counterbore designed for precision recess cutting in metalworking and machining applications. Built from cobalt steel with a bright, uncoated finish, this tool delivers durability and heat resistance suited for drilling harder materials. The straight shank measures 1/2 inch in diameter and 3-7/8 inches in length, while the counterbore head diameter is 19/32 inch. Overall length is 5-1/8 inches. Right-hand cutting direction is standard. This counterbore is sized and constructed for use by machinists, tool-and-die shops, and maintenance technicians who require consistent, repeatable counterbored holes.

This counterbore is well suited for drilling counterbored recesses in ferrous and non-ferrous metals in both production shop and job-site maintenance environments. The interchangeable pilot design allows the pilot to be swapped to match different fastener clearance requirements, making it a flexible option for shops working with varied bolt and screw sizes. Compatible with standard drill presses, milling machines, and CNC machining centers that accept 1/2-inch straight shank tooling. The 19/32-inch counterbore diameter accommodates common fastener head recess sizes used in structural and mechanical assembly work.

Key Features

• 19/32 inch counterbore diameter for precision fastener head recessing
• Cobalt steel construction for improved heat and wear resistance in harder materials
• 3-flute geometry provides smooth cutting action and efficient chip evacuation
• Interchangeable pilot accepts 3/16 inch pilot shank for flexible fastener compatibility
• Bright uncoated finish for easy visual inspection of cutting edge condition
• Right-hand cutting direction compatible with standard drill press and milling machine spindles

Compatibility

Designed for use in drill presses, milling machines, and CNC machining centers equipped with 1/2-inch straight shank tool holders. The interchangeable pilot accepts a 3/16 inch diameter pilot shank.

Installation Notes

Installation and use of this counterbore should be performed by a qualified machinist or maintenance technician. Secure the straight shank firmly in an appropriate 1/2-inch collet or drill chuck before operation, and verify that the pilot is properly seated before engaging the workpiece. Always power down and lock out the machine before changing pilots or inspecting the cutting edges. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality.