Walter-titex 6618823 Extra Length Drill Bit 0.375in Carbide

Product Description

The WALTER-TITEX 6618823 is a solid carbide extra length drill bit engineered for demanding metal-cutting applications in industrial and trade environments. It measures 0.375 inches in diameter with a 7.087-inch overall length and a 5.433-inch flute length, giving it a 12xD flute-to-diameter ratio suited for deep-hole work. The TiNAl coating improves heat resistance and extends tool life when cutting abrasive or hard materials. A 140-degree drill point angle reduces thrust force and promotes self-centering on entry. This bit is installed by machinists, tool-and-die professionals, and maintenance technicians working with CNC or manual drilling equipment.

This drill bit is rated for use on cobalt, iron, nickel, and titanium alloy as primary workpiece materials, with secondary capability on glass and graphite. It supports blind hole, cross hole, inclined hole exit, and stack drilling applications, making it versatile across aerospace, heavy equipment, and general metalworking operations. The straight-cylindrical shank with a 0.394-inch shank diameter seats reliably in standard drill chucks and collet holders. The through-coolant capability allows cutting fluid delivery directly to the cutting zone, which is critical when working at full depth in hard alloys.

Key Features

• Solid carbide construction with TiNAl coating for extended tool life in hard materials
• 140-degree drill point angle promotes self-centering and reduces entry burr
• Through-coolant capable for effective chip evacuation and heat control at depth
• 12xD flute-to-diameter ratio supports deep-hole drilling up to 4.843 inches maximum depth
• Right-hand cutting direction with 2-flute geometry for efficient chip removal
• Straight-cylindrical shank compliant with DIN 6535 HA, ANSI, and ISO standards

Compatibility

Designed for use with standard drill chucks and collet systems accepting a 0.394-inch straight-cylindrical shank. Compatible with CNC machining centers and manual drilling equipment equipped with through-coolant capability. Rated for primary workpiece materials including cobalt, iron, nickel, and titanium alloy, and secondary materials including glass and graphite.

Installation Notes

Installation should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tool setup and machine safety procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck or collet. Verify shank seating depth and runout before engaging a cut, particularly for deep-hole or stack drilling operations. Activate through-coolant flow prior to initiating the cut to prevent thermal damage to the carbide substrate.