Cleveland C08648 Taper Length Drill Bit No. 39 Hss

Product Description

The CLEVELAND C08648 is a taper length, high-speed steel drill bit designed for accurate hole-making in metalworking and general fabrication applications. Built to Series 2510 specifications, it carries a standard 118-degree point angle with web thinning for improved cutting performance and reduced thrust. The straight shank measures 0.0995 inches in diameter, matching the No. 39 wire size designation. A spiral flute with tapered web configuration channels chips away from the cutting zone efficiently. Right-hand cut geometry conforms to ASME B94.11M and DIN 340 standards, making it suitable for use in standard drill presses, CNC machines, and hand-held power tools.

This bit is suited for general-purpose drilling in alloy steel, carbon steel, and cast iron. The taper length body, with a 2.5-inch flute length and 4.625-inch overall length, provides additional reach compared to a jobber-length bit, making it useful in situations where standard-length bits cannot access the work area. Machinists, tool-and-die technicians, and maintenance professionals working with ferrous metals will find this size useful for fixture work, jig drilling, and maintenance repair operations requiring No. 39 wire gauge clearance holes.

Key Features

• No. 39 wire size, 0.0995-inch diameter with a tolerance of +0.0000 to -0.0005 inches
• 118-degree standard point angle with web thinning for reduced entry thrust
• Taper length body: 2.5-inch flute length, 4.625-inch overall length
• High-speed steel construction with coated finish for extended wear resistance
• Right-hand spiral flute with tapered web for efficient chip evacuation
• Conforms to ASME B94.11M and DIN 340 standards

Compatibility

Designed for use in alloy steel, carbon steel, and cast iron drilling applications. Fits standard straight-shank drill chucks accepting a 0.0995-inch shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with drilling operations. Secure the workpiece firmly before beginning any drilling operation, and ensure the drill chuck is properly tightened onto the straight shank. Use appropriate cutting fluid when drilling ferrous metals to manage heat and extend tool life. Inspect the cutting edges for wear or damage before each use and replace the bit if the point shows chipping or deformation.