Harvey Tool 881116-C6 Drill Mill 1/4 in 4 Flute Altin Carbide

Product Description

The HARVEY TOOL 881116-C6 is a solid carbide drill mill designed for machinists and tool-and-die professionals who need a single tool capable of drilling, chamfering, and end milling in one operation. It features a 1/4 inch cutting diameter, a 90-degree point angle, and four flutes that provide efficient chip evacuation during both plunge and peripheral cutting. The AlTiN (aluminum titanium nitride) coating adds heat resistance and hardness at the cutting edge, extending tool life in ferrous and hardened materials. Overall length is 2-1/2 inches with a 1/4 inch shank diameter.

This drill mill is suited for use in machining centers, CNC mills, and manual milling machines where a combination drilling and milling operation is required. It is commonly applied in mold and die work, aerospace component machining, and general precision metalworking. The 3/4 inch length of cut accommodates moderate-depth features while keeping the tool rigid and minimizing deflection. It is appropriate for ferrous alloys, stainless steels, and other materials where AlTiN coating performance is an advantage.

Key Features

• 1/4 inch cutting diameter with 0.2500 inch decimal precision
• 90-degree point angle enables spot drilling, chamfering, and countersinking in addition to end milling
• Four-flute geometry balances material removal rate with surface finish quality
• AlTiN coating improves heat resistance and extends tool life in ferrous and hardened materials
• 3/4 inch (0.7500 inch) length of cut provides versatility while maintaining rigidity
• Solid carbide construction delivers superior hardness and wear resistance compared to HSS

Compatibility

Designed for use in standard 1/4 inch collets, end mill holders, and milling chucks on CNC machining centers and manual milling machines. Verify holder runout and collet condition before use to maintain cutting accuracy.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the spindle before inserting or removing the tool from its holder. Seat the shank fully in the collet or holder to the recommended grip length and torque the retention hardware per the toolholder manufacturer specifications. Inspect the cutting edges and coating for damage before each use; do not run a chipped or cracked carbide tool.