Hertel 18700 Countersink 2 in 82 Degree 4 Flute Hss

Product Description

The HERTEL 18700 is a high speed steel countersink designed for producing clean, accurate conical recesses in metal and other machinable materials. With a 2-inch head diameter and an 82-degree included angle, this tool is suited for deburring, chamfering, and preparing holes to accept flat-head fasteners. The 4-flute geometry provides smooth cutting action and reduces chatter on standard machine tool setups. The straight-cylindrical shank measures 3/4 inch in diameter, providing secure, concentric clamping in a standard drill chuck or collet holder. This countersink is a standard-production tool typically installed by machinists, tool-and-die technicians, and maintenance professionals working on metalworking equipment.

This countersink is appropriate for use in drill presses, milling machines, and CNC machining centers in both production shop and maintenance environments. The 82-degree included angle matches the standard specification for flat-head machine screws and aerospace-style fasteners commonly used in metalworking and light manufacturing applications. The 2-inch head diameter allows the tool to service a wide range of hole diameters in a single pass, reducing tool changes on parts with multiple countersink requirements.

Key Features

• 2-inch head diameter accommodates a wide range of hole sizes in a single pass
• 82-degree included angle matches the standard for flat-head fastener seat preparation
• 4-flute design reduces chatter and promotes smooth surface finish
• High speed steel construction provides durability across a range of machinable materials
• 3/4-inch straight-cylindrical shank fits standard chucks and collet holders

Compatibility

Designed as a standard straight-shank countersink for use in drill presses, milling machines, and CNC machining centers that accept a 3/4-inch cylindrical shank toolholder.

Installation Notes

Install and remove this tool only with the machine at a full stop and the spindle locked. Secure the shank firmly in a properly sized chuck or collet to ensure concentric runout. Use cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish. Inspect cutting edges before each use and replace the tool if chipping or wear is observed.