Internal Tool 49-2165-C Drill Mill 1/4 Inch Solid Carbide

Product Description

The INTERNAL TOOL 49-2165-C is a solid carbide drill mill designed for combined drilling and milling operations in a single tool. With a 0.2500 inch mill diameter, a 1 inch length of cut, and a 2-flute right-hand configuration, it handles material removal efficiently in a variety of metalworking applications. The AlTiN coating provides heat resistance and extended tool life under high-speed cutting conditions. The 30-degree helix angle and 60-degree point angle are optimized for chip evacuation and accurate entry into the workpiece. This tool is used by machinists and CNC operators working in production and job-shop environments.

This drill mill is suited for operations on steel, stainless steel, cast iron, non-ferrous metals, and superalloys including titanium. The AlTiN coating makes it particularly effective in dry or semi-dry machining where heat buildup is a concern. The 1/4 inch shank fits standard collet chucks and tool holders common on vertical machining centers and CNC mills. The 2.5 inch overall length provides clearance for most standard setups without excessive overhang.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance
• AlTiN coating for heat resistance and extended tool life in high-temp alloys
• 2-flute, right-hand cut and right-hand flute for efficient chip removal
• 30-degree helix angle and 60-degree point angle for accurate drilling and milling entry
• Compatible with steel, stainless steel, cast iron, non-ferrous metals, and titanium alloys
• 1/4 inch shank fits standard collet and ER-style tool holders

Compatibility

Designed for use in CNC machining centers and manual mills with standard 1/4 inch collet or end mill holders. Rated for primary workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, and superalloys and titanium per material codes P, M, K, N, and S.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in a safe state before loading or removing the tool from the holder. Seat the shank fully in the collet to the recommended minimum engagement depth per your toolholder manufacturer guidelines. Verify runout with a dial indicator before beginning a production run to avoid premature tool wear or workpiece damage.