Hertel 336-003070 Carbide Countersink 1/4 in 90 Deg 6 Flute

Product Description

The HERTEL 336-003070 is a solid carbide countersink designed for creating clean, accurately angled seat recesses in metal and engineered materials. It features a 90-degree included angle and a 45-degree centerline angle, producing a standard flat-head fastener seat in a single pass. The 1/4 inch head diameter and 1/4 inch straight cylindrical shank make it compatible with standard drill chucks and collet holders. With 6 flutes and a bright uncoated finish, this tool is built for right-hand cutting in production and maintenance applications where surface finish and dimensional accuracy matter.

This countersink is suited for use in alloy steel, cast iron, and glass-reinforced plastic. It fits into typical CNC machining centers, drill presses, and handheld pneumatic or electric drills where a 1/4 inch shank is accepted. The 6-flute geometry reduces chatter and produces a smoother finish compared to single- or three-flute designs, making it a practical choice for repetitive countersinking tasks in fabrication shops, maintenance facilities, and light manufacturing environments. No pilot is included, so the operator controls centering through tooling setup or a pre-drilled pilot hole.

Key Features

• 90-degree included angle for standard flat-head fastener seating
• 6-flute design minimizes chatter and improves surface finish
• Solid carbide construction for extended tool life in hard materials
• 1/4 inch straight cylindrical shank fits standard chucks and collets
• Bright uncoated finish suitable for use with cutting fluids
• Right-hand cut, single-end tool for straightforward setup

Compatibility

Rated for use in alloy steel, cast iron, and glass-reinforced plastic. Accepts standard 1/4 inch drill chucks and collet-style toolholders. No pilot included; a pre-drilled pilot hole is recommended for accurate centering.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Secure the shank fully in the chuck or collet before operation and verify that the workpiece is clamped firmly. Power down the machine and ensure the spindle has stopped completely before changing or inspecting the tool. Use an appropriate cutting fluid for the material being worked to extend tool life and maintain finish quality.