Value Collection GH8830341 Counterbore 17/32 in 4 Flute Hss

Product Description

The VALUE COLLECTION GH8830341 is an interchangeable pilot counterbore designed for precision counterboring operations in metal fabrication and aerospace-style applications. Built from high speed steel with a bright, uncoated polished finish, this tool delivers clean, concentric seats for fastener heads and other recessed features. The 17/32-inch cutting diameter pairs with a 1/2-inch straight shank and a 4-1/4-inch overall length, making it compatible with standard drill presses, milling machines, and hand-held drill motors where straight-shank tooling is accepted. Four flutes provide smooth chip evacuation and a clean bore finish in ferrous and non-ferrous materials.

This counterbore is suited for aircraft-style applications and general metalworking where a replaceable pilot configuration is required. The interchangeable pilot design allows the technician to swap pilots to match different fastener shank diameters without replacing the body, reducing tooling cost over time. Compatible pilot shank diameter is 1/8 inch. Typical users include aerospace maintenance technicians, machinists, and industrial maintenance professionals working on structural assemblies or equipment frames.

Key Features

• 17/32-inch counterbore diameter for precision fastener seat preparation
• Interchangeable pilot accepts 1/8-inch pilot shank diameter
• High speed steel construction for durability in ferrous and non-ferrous stock
• Bright, uncoated polished finish for reduced friction and easy inspection
• 4-flute geometry promotes smooth chip flow and clean bore finish
• Aircraft-style designation suitable for structural and aerospace maintenance work

Compatibility

Designed as an OEM-style replacement or direct-fit counterbore for straight-shank toolholders accepting a 1/2-inch shank diameter. Accepts interchangeable pilots with a 1/8-inch pilot shank diameter.

Installation Notes

This tool is installed by machinists and maintenance technicians using standard drill presses, milling machines, or heavy-duty hand drills with a straight-shank chuck. Secure the workpiece firmly before operation and confirm the pilot is fully seated and locked before engaging the cut. Right-hand cutting direction requires conventional clockwise spindle rotation. Inspect the pilot and body for wear or damage before each use to maintain bore concentricity and avoid tool breakage.