Hertel 334-302060 Countersink 3/16 in 82 Deg 4 Flute Carbide

Product Description

The HERTEL 334-302060 is a solid carbide countersink designed for creating clean, accurate conical seat recesses in metal and other hard materials. With a 3/16 inch head diameter and an 82-degree included angle, this tool is sized for standard flat-head fastener applications where precise seat geometry is required. The 4-flute configuration promotes smooth cutting action and reduces chatter, resulting in a consistent finish. The straight cylindrical shank provides secure tool holding in standard drill chucks and collet systems. This countersink is a common choice for machinists, toolmakers, and production floor technicians working on precision fastener prep operations.

This countersink suits applications in light to medium machining environments where small-diameter, tight-tolerance countersinking is needed. The 82-degree included angle matches the seating geometry of most standard flat-head machine screws and aerospace-style fasteners. The 3/16 inch shank diameter fits commonly available drill chucks and collet holders without requiring adapters. Typical use cases include deburring drilled holes, chamfering edges, and seating flat-head fasteners flush with a workpiece surface in both manual and CNC-assisted setups.

Key Features

• 3/16 inch head diameter for small-fastener and tight-clearance countersinking work
• 82-degree included angle matches standard flat-head fastener seat geometry
• 4-flute design reduces chatter and produces a consistent surface finish
• Solid carbide construction for extended tool life in hard or abrasive materials
• Straight cylindrical shank for direct chuck or collet mounting without adapters

Compatibility

Designed as an OEM-style countersink for use with standard flat-head fasteners requiring an 82-degree seat angle; fits drill chucks and collet systems accepting a 3/16 inch straight shank.

Installation Notes

This tool is installed by a machinist or toolroom technician in a drill press, milling machine, or CNC spindle using a compatible chuck or collet. Secure the shank fully in the tool holder before operation and verify spindle runout is within acceptable limits to avoid premature wear. Carbide tooling is brittle — avoid lateral loading or impact during setup. Use appropriate cutting fluid for the workpiece material and operate at manufacturer-recommended speeds for carbide in the target material.