Hertel H-81155020000 Combo Drill Countersink Size 2 Hss

Product Description

The HERTEL H-81155020000 is a combination drill and countersink designed for precision spotting, centering, and countersinking operations in metal fabrication and machining applications. Built from high-speed steel with a bright, uncoated finish, this double-end tool features a 3/16-inch body diameter and a 5/64-inch drill point diameter with a 90-degree included angle and 118-degree drill point angle. The double-end design extends tool life by providing two usable cutting ends. At 1-7/8 inches overall length, it fits standard drill presses, CNC machining centers, and manual milling setups used by machinists and tool and die professionals.

This combo drill countersink is suited for creating accurately located center holes before turning or between-center grinding operations, as well as for countersinking fastener seats in ferrous and non-ferrous materials. The plain cutting edge style and uncoated bright finish make it appropriate for general-purpose shop use where coolant or cutting fluid is applied at the tool. Trade size 2 is a common selection for light-duty centering work on small-diameter workpieces in production and job shop environments.

Key Features

• Double-end design provides two cutting ends for extended tool life
• High-speed steel construction for durability in metal cutting applications
• Bright uncoated finish compatible with standard cutting fluids
• 90-degree included angle for standard countersink geometry
• 118-degree drill point angle suited for general-purpose center drilling
• Compact 1-7/8-inch overall length fits tight tooling setups

Compatibility

Designed as a standard trade size 2 combination drill countersink compatible with drill presses, lathes, and milling machines accepting straight-shank tooling of 3/16-inch body diameter.

Installation Notes

Installation is performed by machinists or toolroom personnel. Secure the tool firmly in a drill chuck or collet before operation and verify runout is within acceptable limits. Always apply appropriate cutting fluid for the workpiece material and operate at speeds recommended for high-speed steel tooling. Power down the machine and lock out energy sources before changing or inspecting the tool.