Value Collection GH8794018 Counterbore Set 6 Piece Hss

Product Description

The VALUE COLLECTION GH8794018 is a 6-piece interchangeable pilot counterbore set designed for precision counterboring operations in metal fabrication, maintenance, and machining applications. Built from high-speed steel with a bright uncoated finish, each cutter features a 3-flute design and a straight cylindrical shank for secure chuck engagement. The set covers six fastener sizes, making it a practical choice for shops and field technicians who need to countersink or counterbore multiple bolt and screw diameters without switching tool sets. The complete set stores in an included wood block for organized access and protection between uses.

This counterbore set is suited for use in metalworking, industrial maintenance, and assembly environments where multiple fastener sizes are encountered. Compatible fastener sizes include 1/4, 5/16, 3/8, 1/2, 5/8, and 3/4 inch. The interchangeable pilot design allows pilots to be swapped out for standard sizing, reducing the number of dedicated tools required. Machinists, maintenance mechanics, and tool-and-die professionals will find this set well-suited for production and repair work on ferrous and non-ferrous materials.

Key Features

• High-speed steel construction for durability across a range of workpiece materials
• Bright uncoated finish suitable for general-purpose counterboring
• 3-flute geometry provides smooth cutting action and chip clearance
• Straight cylindrical shank for compatibility with standard drill chucks and milling setups
• Interchangeable standard pilots accommodate six fastener sizes: 1/4, 5/16, 3/8, 1/2, 5/8, and 3/4 inch
• Wood storage block keeps cutters and pilots organized and protected

Compatibility

Designed for use with standard pilot counterbore applications covering fastener sizes of 1/4, 5/16, 3/8, 1/2, 5/8, and 3/4 inch. Pilots are standard size. Straight shank fits conventional drill chucks and milling machine holders.

Installation Notes

Counterbore sets of this type are typically used by machinists and maintenance mechanics operating drill presses, milling machines, or hand-held drill equipment. Before use, ensure the workpiece is securely clamped and the pilot is properly seated and locked in the cutter body. Use appropriate cutting fluid for the workpiece material to extend tool life and improve finish quality. Follow all shop safety procedures, including eye protection and proper spindle speed selection for the material and cutter diameter in use.