Titan Usa TC18808 Spotting Drill 1/8 in Solid Carbide

Product Description

The TITAN USA TC18808 is a solid carbide spotting drill designed to create precise starter holes that guide twist drills and other cutting tools into workpieces with minimal walking or deflection. With a 120-degree point angle and a 0.125-inch cutting diameter, it is well suited for general-purpose spotting operations on a wide range of materials. The bright, uncoated finish maintains the carbide substrate at full hardness without any coating buildup that could alter the tip geometry. At 2 inches overall length, it is compact enough to run in tight setups while still providing adequate shank engagement in standard drill chucks and collets.

This spotting drill is intended for use on CNC machining centers, drill presses, and manual mills in job shop, production, and maintenance-repair environments. It performs spotting, countersinking prep, and chamfering tasks on steel, aluminum, cast iron, and similar workpiece materials. The single-ended, right-hand cutting configuration and straight cylindrical shank make it compatible with standard ER collet chucks, Jacobs-style chucks, and shrink-fit toolholders commonly found in metalworking operations. The 0.25-inch flute length keeps chip evacuation simple at the shallow depths typical of a spotting operation.

Key Features

• 120-degree point angle centers accurately and matches common twist drill geometries to minimize secondary burring
• Solid carbide construction provides rigidity and wear resistance superior to high-speed steel alternatives
• Bright, uncoated finish delivers consistent dimensional accuracy without coating-thickness variation at the tip
• Two-flute spiral design with right-hand cut for use in standard forward-rotating spindles
• Straight cylindrical shank fits ER collets, Jacobs chucks, and shrink-fit holders without adapters
• Compact 2-inch overall length suits low-clearance fixturing and short-reach tooling setups

Compatibility

Designed as a general-purpose spotting drill suitable for use in standard drill chucks and collet systems that accept a 0.125-inch straight cylindrical shank. Part of TITAN USA Series 188.

Installation Notes

Spotting drills are installed and changed by a machinist or toolroom technician following standard machine lockout procedures before any toolholder work. Ensure the spindle is fully stopped and the machine is placed in a safe state before inserting or removing the tool from the chuck or collet. Seat the shank fully in the holder to the recommended grip depth and torque the collet nut or chuck key evenly to prevent runout. Avoid using this tool for deep drilling beyond its flute length, as it is designed strictly for shallow spotting and centering operations.