Cleveland C14815 Screw Machine Drill Bit 0.3937in Cobalt

Product Description

The CLEVELAND C14815 is a screw machine length cobalt drill bit designed for high-performance drilling in demanding shop and production environments. With a 0.3937 inch diameter and a 135-degree split point, this bit starts on contact and reduces walking without a center punch. The web-thinned, parallel web construction reduces thrust and improves chip evacuation. At 3.504 inches overall length with a 1.693 inch flute length, this is a stub-length format built for rigidity in drill presses, CNC machines, and turret lathes. M42 cobalt material grade handles heat and hardness better than standard HSS, making it a reliable choice for production runs on tough materials. Licensed machinists, tool and die workers, and industrial maintenance technicians install and operate this bit.

The C14815 is suited for drilling alloy steel, aluminum, and similar workpiece materials in production and job-shop settings. The screw machine length format keeps the bit short and rigid, reducing deflection in high-cycle applications. Right-hand cutting with a regular spiral and straight-cylindrical shank makes this bit compatible with standard drill chucks, collets, and quick-change toolholders. It conforms to ASME B94.11M and DIN 1897 specifications, so it fits into tooling programs where standards compliance is required.

Key Features

• M42 cobalt construction for heat resistance and extended tool life on hard and abrasive materials
• 135-degree split point reduces thrust and eliminates walking on flat or curved surfaces
• Web-thinned parallel web lowers cutting resistance and improves chip flow
• Screw machine (stub) length at 3.504 inches overall for maximum rigidity and reduced deflection
• Right-hand, 2-flute spiral design with straight-cylindrical shank fits standard chucks and collets
• Meets ASME B94.11M and DIN 1897 standards for dimensional consistency across tooling programs

Compatibility

Designed as a standard screw machine length drill bit compatible with any drill press, CNC machining center, lathe turret, or hand drill equipped with a chuck or collet accepting a 0.3937 inch straight-cylindrical shank.

Installation Notes

Installation and operation should be performed by qualified machinists or tool and die technicians familiar with proper speeds and feeds for cobalt tooling. Always secure the workpiece and verify chuck or collet runout before beginning a cut. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed. Follow shop safety protocols and machine guarding requirements during all drilling operations.