Titan Usa TC20231 Screw Machine Drill Bit Size 31 Carbide

Product Description

The TITAN USA TC20231 is a screw machine length drill bit designed for high-precision drilling in metal, composite, and hard-material applications. Built from solid carbide, this bit delivers superior hardness and wear resistance compared to high-speed steel alternatives. It features a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on curved or hard surfaces. With an overall length of 2 inches and a flute length of 0.75 inches, the stub-length geometry maximizes rigidity and reduces deflection in short-reach drilling setups. The bright uncoated finish suits general-purpose use across a range of materials. This bit is sold individually and is suited for machinists, tool-and-die technicians, and maintenance professionals.

Screw machine length bits are standard in production machining, CNC drilling, and bench-work applications where rigidity and accuracy take priority over reach. The TC20231 carries a wire gauge size of 31, equal to 0.1200 inches decimal, placing it in the 0.1000 to 0.1500 inch size range. It is well suited for pilot holes, through-holes in metal plate, and precision work in tight clearance setups. The straight cylindrical shank seats cleanly in standard drill chucks and collet holders without modification. Right-hand cutting direction is standard for conventional drill press and CNC spindle use.

Key Features

• Solid carbide construction for hardness and long tool life in demanding materials
• 135-degree split point self-centers and reduces thrust force at entry
• Stub screw machine length provides maximum rigidity and minimal deflection
• Bright uncoated finish compatible with a wide range of workpiece materials
• Regular spiral flute with 2 flutes for efficient chip evacuation in short-hole drilling
• Straight cylindrical shank fits standard drill chucks and collet systems without adapters

Compatibility

Designed as a standard screw machine length drill bit in wire gauge size 31 (0.1200 inches), compatible with any drill press, CNC machining center, or hand drill equipped with a straight-shank chuck or collet capable of accepting a 0.1200-inch shank diameter.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with proper cutting speeds and feeds for solid carbide tooling. Carbide is brittle compared to high-speed steel; avoid lateral loading, interrupted cuts without proper feed rate adjustment, and impacts that can chip the cutting edge. Ensure the workpiece is securely fixtured and the spindle is running at an appropriate speed for the material and bit diameter before contact. Coolant or cutting fluid may be applied externally even though this bit does not have coolant-through capability.