Harvey Tool 988116-C3 Drill Mill 1/4 in 4 Flute Altin Carbide

Product Description

The HARVEY TOOL 988116-C3 is a solid carbide drill mill designed for combined drilling and milling operations in a single tool. With a 1/4 inch cutting diameter, a 120-degree point angle, and four flutes, this tool transitions between center drilling, spot drilling, and end milling without a tool change. The AlTiN coating improves heat resistance and tool life in ferrous and hardened materials. The 3/4 inch length of cut and 2-1/2 inch overall length make it suited for moderate-depth pockets and through-hole work on CNC machining centers and manual mills.

This drill mill is used in precision machining environments where cycle time reduction matters. It handles spot drilling, through-hole drilling, chamfering, and side milling in a single setup. Typical applications include die and mold work, aerospace component machining, and general job shop operations on steel, stainless steel, cast iron, and high-temperature alloys. The 1/4 inch shank diameter fits standard collet chucks and end mill holders commonly found in vertical machining centers and milling machines.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating extends tool life in high-heat, dry, and semi-dry cutting conditions
• 120-degree point angle optimized for spot drilling and transition to side milling
• Four flutes provide increased chip clearance and a smoother finish compared to two-flute designs
• 3/4 inch length of cut supports moderate-depth pockets and full-diameter drilling
• 1/4 inch shank diameter fits standard collet and end mill holder tooling

Compatibility

Designed for use in CNC machining centers and manual milling machines equipped with standard 1/4 inch collet chucks or end mill holders.

Installation Notes

Installation is performed by qualified machinists following shop safety procedures. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool from the holder. Secure the shank with appropriate collet torque per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a production run to avoid premature tool wear or workpiece damage.