Hertel 19097 Countersink 1/2 in 82 Degree 1 Flute Hss

Product Description

The HERTEL 19097 is a single-flute countersink designed for creating clean, accurately angled seat recesses in metal and other materials. Built from high speed steel, this countersink features a 1/2-inch head diameter and an 82-degree included angle, making it suited for standard flat-head fastener seating applications. The 1/4-inch straight cylindrical shank fits standard drill chucks and collet holders. Machinists, tool-and-die technicians, and maintenance mechanics use this countersink in both bench drill and CNC applications where a precise, single-flute geometry reduces chatter and produces a smooth finish.

This countersink is used in general metalworking, fabrication, and maintenance-repair-operations environments. The 82-degree angle matches the seating geometry of most imperial flat-head machine screws and fasteners commonly encountered in sheet metal, structural, and light manufacturing work. It is appropriate for use in manual drill presses, hand drills, and CNC machining centers with a compatible 1/4-inch toolholder or chuck.

Key Features

• 1/2-inch head diameter for standard flat-head fastener countersinking
• 82-degree included angle matches common imperial flat-head screw geometry
• Single-flute design reduces chatter and improves surface finish in metal
• High speed steel construction provides durability across a range of workpiece materials
• 1/4-inch straight cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as a general-purpose countersink for use in drill presses, hand drills, and CNC machining centers equipped with a 1/4-inch chuck or collet. Compatible with metalworking and fabrication applications requiring an 82-degree seating angle.

Installation Notes

Countersinks should be installed and operated by qualified machinists or maintenance mechanics familiar with rotary cutting tools. Secure the shank firmly in a properly sized chuck or collet before operation, and confirm the workpiece is clamped to prevent movement. Use appropriate cutting fluid or lubricant when countersinking ferrous metals to extend tool life and improve finish quality. Inspect the cutting edge for wear or chipping before each use and replace the tool if damage is observed.