Hertel H-81154L02050 Combo Drill Countersink Hss

Product Description

The HERTEL H-81154L02050 is a combination drill and countersink designed for simultaneous drilling and countersinking operations in a single pass. Manufactured from high-speed steel with a bright uncoated finish, this No. 2 trade size tool features a 3/16 inch body diameter and a 5/64 inch drill point diameter with a 118-degree drill point angle. The 82-degree included angle prepares fastener seats cleanly without secondary operations. With a 5 inch overall length, it is classified as a long-length tool and suits machinists, toolmakers, and fabricators working on production or maintenance tasks.

This combo drill countersink is intended for use in metal fabrication, general machining, and maintenance repair applications where countersunk fastener holes are required. The plain cutting edge style and double end type make it suitable for use in drill presses, lathes, and CNC equipment. The tool is not tapered and does not feature an insertable cutter head, making it a solid, single-piece construction tool appropriate for shop-floor use across light and medium metalworking operations.

Key Features

• No. 2 trade size with 3/16 inch body diameter for standard countersinking applications
• High-speed steel construction provides durability across a range of workpiece materials
• Bright uncoated finish for easy visual inspection of cutting edge condition
• 118-degree drill point angle with 82-degree included angle for accurate fastener seat geometry
• Long-length design at 5 inches overall length extends reach in deep or confined setups
• Double end type allows the tool to be reversed when one end dulls, extending service life

Compatibility

Designed as a standard combo drill countersink for use in drill presses, lathes, and CNC machining equipment that accept straight-shank combination drill and countersink tooling of this body diameter and trade size.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician. Secure the tool firmly in the machine spindle or chuck before operation and verify that the workpiece is clamped to prevent movement. Always power down and come to a full stop before changing or adjusting tooling. Use appropriate cutting fluid for the workpiece material to prolong tool life and maintain hole quality.