Value Collection 381-9044 Counterbore Set Hss 4 Piece

Product Description

The VALUE COLLECTION 381-9044 is a 4-piece solid pilot counterbore set designed for use with socket-head cap screws ranging from 1/4 inch to 1/2 inch. Manufactured from high speed steel (HSS) with a bright polished finish, these counterbores deliver clean, precise seating recesses in metal workpieces. Each tool features a standard Morse taper shank for secure mounting in compatible drilling equipment and a 3-flute cutting geometry that promotes chip evacuation and dimensional accuracy. This set is used by machinists, tool and die makers, and maintenance technicians working on machine assemblies and structural fastening applications.

This counterbore set covers the common socket-head cap screw size range from 1/4 inch through 1/2 inch, making it well suited for general machining, fixture building, and machine maintenance in job shop or industrial environments. The solid pilot design provides positive tool guidance during cutting, reducing walk and improving hole concentricity. The Morse taper shank allows use in drill presses and milling machines equipped with a compatible taper socket or adapter.

Key Features

• High speed steel construction for hardness and wear resistance in metal cutting applications
• Bright polished finish reduces friction and aids chip flow during cutting
• 3-flute cutting geometry promotes chip evacuation and smooth bore finish
• Standard solid pilot design guides the tool and maintains concentricity with the pilot hole
• Morse taper shank mounts securely in drill presses and milling machines with compatible taper receivers
• 4-piece set covers socket-head cap screw sizes from 1/4 inch to 1/2 inch

Compatibility

Designed for use with socket-head cap screws in the 1/4 inch to 1/2 inch size range. Requires a drill press or milling machine equipped with a Morse taper spindle or adapter for proper shank seating.

Installation Notes

Installation and use of counterbore sets should be performed by qualified machinists or maintenance technicians. Secure the Morse taper shank fully in the spindle before operation and verify the pilot diameter matches the existing pilot hole in the workpiece. Power down and lock out the machine before changing tools or inspecting cutting edges. Do not exceed the recommended speed range for the workpiece material and tool diameter.