Hertel H-81154L04560 Combo Drill Countersink 3/8 in Hss

Product Description

The HERTEL H-81154L04560 is a combination drill and countersink designed for simultaneous drilling and countersinking in a single pass. Built from high speed steel with a bright polished finish, this tool carries a No. 4-1/2 trade size and a 3/8 inch body diameter. The 118-degree drill point angle paired with an 82-degree included angle for the countersink geometry makes it well suited for preparing fastener seats in metal fabrication and general machining work. The 6 inch overall length accommodates deeper reach applications. Machinists, tool-and-die technicians, and metalworking professionals use this type of tool in drill presses, CNC mills, and manual milling setups.

This combo drill countersink is appropriate for use in job shops, maintenance and repair operations, and production machining environments. It handles countersinking tasks for flathead screws and similar fasteners in ferrous and non-ferrous metals. The long-length configuration provides added reach for parts that require deeper hole access. The plain cutting edge style and non-tapered, non-aircraft body keep it in the category of standard general-purpose tooling used across a broad range of metalworking applications.

Key Features

• High speed steel construction for durability in metal cutting applications
• Bright polished finish reduces friction and facilitates chip evacuation
• 118-degree drill point angle for standard drilling geometry
• 82-degree included countersink angle for flathead fastener seat preparation
• 6 inch overall length classified as a long-length tool for extended reach
• Double end type allows use of both ends to extend tool life

Compatibility

Designed as a standard combo drill countersink for use in drill presses, manual mills, and CNC machining centers that accept 3/8 inch shank tooling.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Secure the tool firmly in the chuck or collet before operation and verify runout is within acceptable limits for the application. Power down and lock out the machine before changing tooling. Always use appropriate cutting fluid for the workpiece material and operate at speeds appropriate for high speed steel tooling in the material being cut.