Cleveland C72093 Jobber Drill Bit Letter W 0.386 in Hss

Product Description

The CLEVELAND C72093 is a jobber-length drill bit sized to Letter W (0.3860 inches) and manufactured from high-speed steel with a bright, uncoated finish. It features a 118-degree standard point angle, a web-thinned and tapered web configuration for easier penetration, and a regular spiral flute with right-hand cut. The straight-cylindrical shank measures 0.3860 inches in diameter with a shank length of 1.375 inches, and the overall length is 5.125 inches with a 3.75-inch flute length. This bit is suited for general-purpose drilling in metal fabrication, maintenance, and light industrial applications and is typically installed by machinists, maintenance technicians, and tool-and-die tradespeople.

The C72093 belongs to Cleveland Series 2002G and is designed for general-purpose drilling in a wide range of ferrous and non-ferrous workpiece materials. With a 4xD flute-to-diameter ratio, it handles moderate-depth holes in production and maintenance environments. It conforms to ASME B94.11M and DIN 338 standards, making it appropriate for shops that specify certified tooling. The bit ships individually and is suitable for use in drill presses, CNC machining centers, and hand-held power drills with compatible chucks.

Key Features

• Letter W size — 0.3860 inches diameter for precise sizing within the 0.3500 to 0.4000 inch range
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust and easier starting
• High-speed steel construction with bright uncoated finish suitable for general-purpose materials
• Right-hand cut, regular spiral flute with 2 flutes for efficient chip evacuation
• Straight-cylindrical shank compatible with standard drill chucks
• Meets ASME B94.11M and DIN 338 standards

Compatibility

Designed as a general-purpose jobber-length drill bit conforming to ASME B94.11M and DIN 338, compatible with standard drill chucks accepting a 0.3860-inch straight-cylindrical shank in drill presses, CNC machining centers, and power hand drills.

Installation Notes

Secure the straight-cylindrical shank fully in a properly sized drill chuck before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Apply appropriate cutting fluid for ferrous materials to extend tool life and improve hole finish. Inspect the cutting edges for wear or chipping before each use and replace the bit if edge integrity is compromised.