Value Collection GH8816282 Counterbore 1-7/16 in 5 Flutes Hss

Product Description

The VALUE COLLECTION GH8816282 is a 5-flute interchangeable pilot counterbore designed for precision enlarging and finishing of existing holes in metalworking applications. Built from high speed steel with a bright, uncoated polished finish, this tool delivers clean, accurate counterbored seats for fastener heads and hardware. The straight shank measures 1-1/4 inches in diameter and 5-7/8 inches in length, with an overall length of 7-7/8 inches. Cutting action is right-hand. The interchangeable pilot design accepts a 3/8-inch pilot shank, allowing the cutter to be paired with different pilots for varied bore conditions without replacing the entire tool body.

This counterbore is suited for machine shop, fabrication, and maintenance environments where repeatable counterbore geometry is required on ferrous and non-ferrous materials. It is intended for use in drill presses, milling machines, or CNC machining centers by machinists, tool and die makers, and maintenance mechanics. The 5-flute configuration supports smooth chip evacuation and a consistent finish on production or repair work.

Key Features

• 1-7/16-inch counterbore diameter for standard fastener seating
• 5-flute geometry for smooth cutting action and reduced chatter
• Interchangeable pilot accepts 3/8-inch pilot shank diameter
• High speed steel construction for durability across a range of workpiece materials
• Bright, uncoated polished finish — no coating to chip or flake under load
• Right-hand cutting direction, compatible with standard spindle rotation

Compatibility

Designed as an OEM-style interchangeable pilot counterbore for use with standard 3/8-inch interchangeable pilot shanks in drill press, milling machine, and CNC machining center setups.

Installation Notes

Installation and use should be performed by qualified machinists familiar with rotating cutting tools and machine tool operation. Secure the straight shank firmly in the machine spindle or chuck before operation, and verify pilot shank fit before engaging the workpiece. Always power down and lock out the machine before changing pilots or inspecting the cutting edges. Follow applicable shop safety standards and machine manufacturer guidelines for speeds and feeds.