Cleveland C14599 No. 18 Cobalt Screw Machine Drill Bit

Product Description

The CLEVELAND C14599 is a screw machine length drill bit designed for high-production drilling in demanding materials. Built from M42 cobalt high-speed steel, it delivers heat resistance and edge retention when cutting through alloy steels, aluminum, and other tough workpieces. The bit measures 0.1695 inches in diameter (No. 18 wire gauge) with an overall length of 2.125 inches, making it well-suited for short-reach, close-tolerance applications. A 135-degree split point reduces thrust and self-centers on contact without a pilot hole. This bit is a standard tool for machinists, toolroom technicians, and maintenance professionals running drill presses, CNC machines, or hand-held equipment.

The C14599 fits typical screw machine and production drilling setups where a stub-length bit provides improved rigidity and reduced deflection compared to jobber-length alternatives. Its straight cylindrical shank seats securely in standard drill chucks and quick-change holders. The right-hand cut and regular spiral geometry support efficient chip evacuation in both ferrous and non-ferrous metals. This bit is a practical choice for general metalworking, fabrication shops, and maintenance operations where consistent hole quality is required in alloy steel, aluminum, and similar materials.

Key Features

• M42 cobalt steel construction provides heat and wear resistance in heavy-duty cutting applications
• 135-degree split point reduces drilling thrust and eliminates the need for a center punch on most metals
• Screw machine (stub) length of 2.125 inches overall delivers increased rigidity and reduced deflection
• Web-thinned parallel web geometry improves cutting efficiency and lowers feed force requirements
• Straight cylindrical shank with 1.0625-inch shank length fits standard 3-jaw chucks and collet holders
• Meets ASME B94.11M and DIN 1897 standards for consistent dimensional accuracy
• Diameter tolerance of +0.0000 to -0.0007 inches supports close-tolerance hole requirements

Compatibility

Designed as an OEM-style replacement or standard addition for any drill press, CNC machining center, or hand drill equipped with a chuck or collet accepting a 0.1695-inch straight cylindrical shank; primary workpiece materials listed by the manufacturer include alloy steel and aluminum.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with rotating cutting tools and applicable shop safety procedures. Secure the shank fully in the chuck or collet before operation and confirm runout is within acceptable limits. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not support through-coolant delivery. Always power down and lock out the machine before changing or inspecting the bit.