Titan Usa TC20218 Screw Machine Drill Bit Size 18 Carbide

Product Description

The TITAN USA TC20218 is a screw machine length drill bit designed for high-precision drilling in metal, plastics, and other hard materials. Built from solid carbide, this bit delivers superior hardness and wear resistance compared to high-speed steel alternatives. The 135-degree split point reduces walking on entry and requires less feed pressure, making it a practical choice for production drilling and tight-tolerance work. At 2 inches overall length, the stub-length body provides added rigidity and reduced deflection in short-reach applications. The bright uncoated finish is suitable for general-purpose use across a wide range of workpiece materials. Installation and use fall within the scope of machinists, tool and die technicians, and industrial maintenance professionals.

This bit is sized at wire gauge 18, corresponding to 0.1695 inches in decimal, placing it within the 0.1500 to 0.2000 inch drill bit size range. Screw machine length bits are commonly used in drill presses, CNC machining centers, lathes with live tooling, and hand-held power drills where a shorter, stiffer bit is preferred over a jobber-length alternative. The straight cylindrical shank fits standard drill chucks and collet holders without modification. This size is commonly applied in tapping prep work, through-hole drilling, and close-tolerance bore operations in manufacturing and maintenance environments.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• 135-degree split point reduces drill walk and lowers required entry force
• Screw machine (stub) length body increases rigidity and minimizes deflection
• Right-hand cutting direction with regular spiral flute geometry for efficient chip evacuation
• Bright uncoated finish compatible with a broad range of workpiece materials
• Straight cylindrical shank fits standard chucks and collet systems without adapters

Compatibility

Designed as an OEM-style replacement or standard tooling option for drill presses, CNC machining centers, and power drills accepting straight cylindrical shank drill bits in the 0.1500 to 0.2000 inch diameter range.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with rotating cutting tools. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Verify chuck or collet runout is within acceptable tolerance before seating the bit, as excessive runout will accelerate carbide wear and reduce hole accuracy. Solid carbide bits are brittle and should not be used in applications with significant vibration or interrupted cuts without confirming suitability for the setup.