Titan Usa TC20120 Drill Bit Letter T Solid Carbide

Product Description

The TITAN USA TC20120 is a screw machine length drill bit sized to Letter T (0.3580 inches) and built from solid carbide for demanding drilling applications. The 135-degree split point geometry reduces walking and lowers the thrust required to start a hole, making it well suited for production drilling in hard or abrasive materials. The bright/uncoated finish maintains close tolerances right out of the box. With an overall length of 3 inches and a flute length of 1.375 inches, this stub-length bit offers increased rigidity and reduced deflection compared to jobber-length alternatives. It weighs approximately 0.11 pounds and is sold individually.

This bit is designed for use in CNC machining centers, drill presses, and hand-held power tools where a short, stiff cutting tool is required. The regular spiral flute and straight cylindrical shank make it compatible with standard drill chucks and collet holders without modification. It is most commonly applied in metalworking operations on ferrous and non-ferrous alloys, cast iron, hardened steels, and similar materials where carbide's hardness and wear resistance outperform high-speed steel. Machinists, toolroom technicians, and maintenance professionals in industrial and manufacturing environments are the typical end users.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• 135-degree split point reduces thrust and minimizes drill walk on entry
• Screw machine (stub) length at 3 inches OAL provides superior rigidity and reduced deflection
• Bright/uncoated finish maintains precise diameter tolerance of 0.3580 inches
• Right-hand cutting with regular spiral flutes for efficient chip evacuation
• Straight cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as an OEM-style replacement and standard tooling option for any drill chuck or collet system accepting a straight cylindrical shank in the Letter T (0.3580 inch) diameter range of 0.3500 to 0.4000 inches, Series 200.

Installation Notes

This bit should be installed and operated by qualified machinists or toolroom technicians familiar with carbide tooling. Secure the shank fully in a drill chuck or collet before operation and verify runout is within acceptable limits, as carbide is brittle and sensitive to side loading. Always power down and lock out the machine before changing tooling. Avoid using carbide bits in hand-held percussion or hammer-drill mode, as impact loading will fracture the carbide substrate.