Hertel 18034 Countersink 3/4 in 100 Degree 1 Flute Hss

Product Description

The HERTEL 18034 is a single-flute countersink designed for producing accurate chamfered holes in metal and other materials. Built from high speed steel, this countersink offers sufficient hardness and heat resistance for general-purpose machining in production and maintenance environments. It features a 3/4 inch head diameter with a 100-degree included angle and mounts via a 1/2 inch straight cylindrical shank. Machinists, toolroom technicians, and maintenance mechanics use this type of tool in drill presses, milling machines, and hand-held power drills for deburring, chamfering, and countersinking fastener seats.

The HERTEL 18034 is suited for countersinking operations on mild steel, aluminum, brass, and similar workpiece materials in both job shop and production settings. The 100-degree included angle matches common fastener head profiles used in aerospace, automotive, and general metalworking applications. The straight cylindrical shank provides a secure grip in standard drill chucks and collet holders with a 1/2 inch bore. This tool is intended for use by machinists and metalworking professionals who require consistent chamfer geometry across repeated operations.

Key Features

• 3/4 inch head diameter for countersinking standard and large fastener seats
• 100-degree included angle matches common flathead and aerospace fastener profiles
• Single-flute design reduces chatter and promotes clean, accurate chamfers
• High speed steel construction provides heat resistance for general-purpose metal cutting
• 1/2 inch straight cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as a general-purpose countersink for use in drill presses, milling machines, and power drills equipped with a 1/2 inch or larger chuck or collet rated for straight shank tooling.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank firmly in a chuck or collet before operation and verify runout before cutting. Always power down and lock out the machine spindle before changing or inspecting tooling. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed selection based on workpiece material and tool diameter.