Hertel 18007 Countersink 3/16 in 90 Deg 1 Flute Hss

Product Description

The HERTEL 18007 is a single-flute high speed steel countersink designed for creating clean, chamfered entry points in metal and other materials prior to fastener seating. With a 90-degree included angle and a 3/16 inch head diameter, this countersink is suited for deburring holes and preparing surfaces for flat-head screws and rivets. The straight-cylindrical shank measures 3/16 inch in diameter, providing positive engagement in standard drill chucks and collet-style toolholders. Machinists, tool and die technicians, and metalworking tradespeople rely on this style of countersink for both bench and machine work requiring consistent chamfer geometry.

This countersink fits typical light-duty metalworking applications including sheet metal prep, fixture fabrication, and general machining operations. The single-flute geometry reduces chatter on hand-held drilling setups and produces a smooth finished chamfer. It is appropriate for use in drill presses, hand drills, and CNC tooling setups where a small-diameter countersink is required. Its compact head diameter makes it well-suited for close-tolerance work and confined layout areas where larger countersinks cannot reach.

Key Features

• 3/16 inch head diameter for small-hole countersinking and deburring
• 90-degree included angle matches standard flat-head fastener geometry
• Single-flute design minimizes chatter on hand-held and low-speed operations
• High speed steel construction provides heat resistance for steel and aluminum cutting
• Straight-cylindrical shank seats securely in standard drill chucks and collets

Compatibility

Designed as an OEM-style single-flute countersink for general metalworking applications requiring a 3/16 inch head diameter and 90-degree included angle with a straight-cylindrical shank.

Installation Notes

This countersink is installed by a machinist or metalworking technician in a standard drill chuck or collet holder. Secure the shank firmly before operation and ensure the workpiece is clamped to prevent movement. Use appropriate cutting fluid when countersinking harder metals to extend tool life. Inspect the cutting edge before each use and replace the tool if chipping or dullness is observed.