Hertel 334-301070 Carbide Countersink 1/8 in 90 Degree 4 Flute

Product Description

The HERTEL 334-301070 is a solid carbide countersink designed for creating clean, accurate chamfered seats in metalworking and machining applications. With a 1/8 inch head diameter and a 90-degree included angle, this tool produces consistent countersunk holes suited for flat-head fastener seating and deburring operations. The 4-flute geometry distributes cutting load evenly, improving surface finish and extending tool life compared to single- or double-flute designs. The straight cylindrical shank measures 1/8 inch in diameter, allowing direct chucking in standard collets or drill chucks. Machinists, toolmakers, and CNC operators working in precision fabrication environments are the primary users of this tool.

This countersink is well-suited for light-duty countersinking and chamfering operations on ferrous and non-ferrous materials. Its compact 1/8 inch head diameter makes it appropriate for small-diameter hole work where larger countersinks would be impractical. Typical applications include aerospace component preparation, precision sheet metal work, and general machine shop use where tight tolerances and clean entry chamfers are required.

Key Features

• Solid carbide construction for hardness and wear resistance in demanding machining environments
• 90-degree included angle for standard flat-head fastener countersinking
• 4-flute design for balanced cutting action and improved surface finish
• 1/8 inch head diameter suited for small-hole and precision countersink work
• Straight cylindrical shank for direct chucking in collets or standard drill chucks

Compatibility

Designed as an OEM-style replacement or direct-use countersink for machine shop and CNC tooling setups requiring a 1/8 inch straight-shank carbide countersink with a 90-degree angle.

Installation Notes

This tool is installed by machinists or toolroom personnel in a collet chuck or drill chuck compatible with a 1/8 inch straight shank. Ensure the spindle is fully stopped and the machine is powered down before tool changes. Set appropriate spindle speed and feed rate for the workpiece material per standard machining practice. Do not exceed the tool's rated cutting diameter or apply lateral side loads inconsistent with a countersinking operation.