Hertel H-81154L07060 Combo Drill Countersink Size 7 Hss

Product Description

The HERTEL H-81154L07060 is a combination drill and countersink tool designed to drill a pilot hole and cut a countersink in a single operation. Built from high speed steel with a bright polished finish, this long-length tool features a trade size 7 configuration with a 5/8 inch body diameter and a 1/4 inch drill point diameter. The 82-degree included angle and 118-degree drill point angle make it suited for standard flat-head fastener seating. At 6 inches overall length, it handles deeper reach applications where a standard-length tool falls short. Machinists, tool and die shops, and fabrication professionals use this type of tool for production and maintenance drilling tasks.

This combo drill countersink is applied in metalworking and fabrication environments where flat-head screws or rivets require a properly angled seat. Its plain cutting edge style and double end type support consistent countersink geometry across repetitive operations. The long-length design extends reach into deeper workpieces or fixtures. Suitable for use in drill presses, CNC machines, and manual milling setups where controlled feed rates can be maintained for clean, accurate countersink geometry.

Key Features

• High speed steel construction for durability across ferrous and non-ferrous materials
• Bright polished finish reduces friction and aids chip evacuation
• 82-degree included angle sized for standard flat-head fastener seating
• 118-degree drill point angle for positive starting and accurate hole location
• Long-length design at 6 inches OAL extends reach beyond standard countersinks
• Double end type provides a second usable cutting end to extend tool life

Compatibility

Designed as an OEM-style replacement or direct substitute for trade size 7 combination drill countersink tools used in standard metalworking, fabrication, and maintenance drilling applications.

Installation Notes

Installation and use of this tool should be performed by qualified machinists or tool operators familiar with proper speeds and feeds for high speed steel cutting tools. Secure the workpiece firmly before operation and use appropriate cutting fluid to extend tool life when working with harder materials. Inspect the cutting edges before each use and remove the tool from service if chipping or wear is observed. Follow all applicable machine shop safety protocols and equipment manufacturer guidelines during setup and operation.