Hertel 334-305060 Countersink 3/8 in 82 Deg 4 Flute Carbide

Product Description

The HERTEL 334-305060 is a solid carbide countersink designed for precision chamfering and deburring of drilled holes in metalworking and machining applications. It features a 3/8-inch head diameter with an 82-degree included angle, making it well suited for seating flat-head fasteners flush with or below the workpiece surface. The 4-flute configuration promotes smooth cutting action and consistent finish quality. A straight cylindrical shank ensures secure clamping in standard drill chucks and collet holders.

This countersink is intended for use in machine shop and manufacturing environments where close-tolerance chamfering is required. It is commonly run in CNC machining centers, drill presses, and manual milling machines. Typical applications include countersinking pilot holes in steel, aluminum, and other machinable metals in both production and job-shop settings. Licensed machinists and tool-and-die professionals are the primary installers and operators.

Key Features

• 3/8-inch head diameter for compact access in standard hole patterns
• 82-degree included angle sized for flat-head fastener seating
• 4-flute geometry for smooth cutting and consistent surface finish
• Solid carbide construction for hardness and wear resistance
• Straight cylindrical shank for compatibility with standard collets and drill chucks

Compatibility

Designed as an OEM-style replacement or direct-use countersink for machining setups requiring a 3/8-inch straight-shank tool with an 82-degree included angle.

Installation Notes

This tool is installed by a qualified machinist into a compatible collet, chuck, or toolholder rated for the shank diameter. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Verify that spindle speed and feed rate are appropriate for the workpiece material and tool diameter before operation. Follow applicable shop safety procedures and machine manufacturer guidelines when setting up cutting tools.