Titan Usa TC28908 Spotting Drill 1/8 in Solid Carbide Altin

Product Description

The TITAN USA TC28908 is a solid carbide spotting drill designed to create accurate, centered starting points for subsequent drilling operations. With a 142-degree point angle and a 0.125-inch cutting diameter, it establishes precise conical seats that reduce drill walk and improve hole location accuracy. The AlTiN (aluminum titanium nitride) coating increases surface hardness and thermal resistance, extending tool life in ferrous and stainless materials. At 2 inches overall length and a 0.25-inch flute length, this is a compact, rigid tool suited for CNC machining centers and manual drill presses in production or job-shop environments. Machinists and tool-and-die professionals are the primary users.

This spotting drill is intended for general-purpose metal spotting applications across a range of workpiece materials. The two-flute spiral design with a straight cylindrical shank allows direct chuck mounting without adapters. At 0.125-inch diameter, it is well suited for small-hole spotting work where rigidity and runout control are critical. It is a single-ended tool from TITAN USA Series 289, sold individually.

Key Features

• 142-degree point angle minimizes axial force and matches common drill geometries for accurate seat transfer
• Solid carbide construction provides rigidity and wear resistance superior to high-speed steel in hard or abrasive materials
• AlTiN coating improves thermal resistance and extends tool life in dry or minimum-quantity lubrication (MQL) cutting conditions
• Two-flute spiral flute design promotes chip clearance in the short flute zone
• Straight cylindrical shank fits standard drill chucks and collet systems without modification
• Compact 2-inch OAL reduces overhang and improves stability in tight workholding setups

Compatibility

Designed as a general-purpose spotting drill for use in CNC machining centers, drill presses, and manual mills with standard drill chucks or collet holders accepting a 0.125-inch straight shank.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with cutting tool setup and machine operation. Ensure the spindle is fully stopped and the machine is powered down or in a safe state before inserting or removing the tool from the chuck or collet. Verify runout with a dial indicator after seating to prevent premature edge wear. Follow the machine manufacturer and tooling supplier guidelines for appropriate spindle speeds and feed rates for the workpiece material.