Walter-titex 7378109 Screw Machine Drill Bit 3/16 in

Product Description

The WALTER-TITEX 7378109 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding production environments. It features a 3/16 inch (0.1875 inch) diameter, a 140-degree standard point angle, and a proprietary TiSiAlCrN/AlTiN multi-layer coating that extends tool life and supports drilling across a broad range of workpiece materials. At 2.598 inches overall length with a 1.102-inch flute length and a maximum drilling depth of 0.787 inches, this stub-length bit delivers rigidity and positional accuracy well-suited to CNC drilling centers, automated lines, and manual screw machine operations. It carries a right-hand cutting direction and a straight cylindrical shank measuring 0.236 inches in diameter.

This bit is rated for use on steel, cast iron, aluminum and non-ferrous metals, and high-temperature alloys, making it a versatile choice for job shops and production machinists working across multiple material families. The 3xD flute-by-diameter ratio and coolant-through design support chip evacuation and heat management during deep or high-cycle drilling. It belongs to the DC160-03-A1 series and is classified under the Universal Advance performance tier, indicating suitability for both general-purpose and demanding applications. Meets DIN and ISO standards.

Key Features

• Solid carbide construction for rigidity and wear resistance in tough materials
• TiSiAlCrN/AlTiN multi-layer coating improves heat resistance and extends tool life
• 140-degree point angle reduces thrust force and minimizes workpiece deformation at entry
• Coolant-through design supports chip evacuation and thermal control during high-cycle drilling
• Straight cylindrical shank fits standard collet and chuck toolholding systems
• Meets DIN and ISO dimensional standards for consistent interchangeability

Compatibility

Designed for use in CNC machining centers, drilling stations, and screw machine setups where a 0.236-inch straight shank toolholder is used. Compatible with steel, cast iron, aluminum and non-ferrous metals, and high-temperature alloys as stated by the manufacturer for the DC160-03-A1 series.

Installation Notes

Installation and setup should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the bit from the toolholder. Verify collet or chuck bore size matches the 0.236-inch shank diameter before clamping. Activate coolant-through supply before beginning drilling cycles to protect the cutting edge and aid chip removal.