Cleveland C14820 Cobalt Screw Machine Drill Bit 0.0984 in

Product Description

The CLEVELAND C14820 is a cobalt screw machine length drill bit designed for high-performance drilling in hard and abrasive materials. Built to Series 2133 specifications and conforming to ASME B94.11M and DIN 1897 standards, it features a 135-degree split point for fast starts and reduced walking on contact. The two-flute, right-hand spiral design with web thinning promotes efficient chip evacuation. At 0.0984 inches in diameter and 1.693 inches overall length, this is a compact stub-style bit suited to precision work in tight clearances. Grade M42 cobalt construction gives it heat resistance for cutting alloy steels and aluminum without sacrificing edge life.

This bit is intended for use in production machining, metal fabrication, and maintenance environments where short, rigid tooling is required. The screw machine length format reduces deflection compared to jobber-length bits, making it a practical choice for CNC machines, drill presses, and hand-held power tools operating on alloy steels and aluminum. Licensed machinists and metal fabricators commonly specify this format when working in confined spaces or when hole positional accuracy is critical.

Key Features

• M42 cobalt tool material rated for heavy-duty cutting in alloy steel and aluminum
• 135-degree split point reduces thrust and eliminates center-punch requirement on most metals
• Web-thinned parallel web improves chip flow and reduces heat buildup at the cutting edge
• Screw machine (stub) length of 1.693 inches overall provides rigidity and minimizes runout
• Straight-cylindrical shank at 0.0984 inches diameter fits standard drill chucks without adapters
• Diameter tolerance of +0.0000 to -0.0005 inches ensures consistent hole sizing
• Conforms to ASME B94.11M and DIN 1897 for standardized fitment and interchangeability

Compatibility

Designed as an OEM-style screw machine length drill bit compatible with standard drill chucks and collet systems accepting a 0.0984-inch straight-cylindrical shank. Primary workpiece materials listed by the manufacturer are alloy steel and aluminum.

Installation Notes

Installation and use should be performed by qualified machinists or metal fabrication professionals familiar with cutting tool safety. Secure the shank fully in the chuck or collet and verify runout before commencing a cut. Cobalt bits generate significant heat under heavy feed rates; use appropriate cutting fluid or coolant where the application permits to extend tool life. Inspect the cutting edge for wear or chipping before each use and replace the bit if the point geometry is compromised.