Cleveland C08785 Taper Length Drill Bit 21/64 in Hss

Product Description

The CLEVELAND C08785 is a taper length twist drill bit designed for general-purpose drilling in metal fabrication and machining applications. Built from high-speed steel (HSS) with a coated finish, this bit delivers consistent cutting performance across a range of ferrous materials. The 118-degree standard point angle provides a reliable entry geometry for flat and curved surfaces. At 21/64 inch (0.3281 inch decimal) in diameter, this bit fills the gap between standard jobber-length and long-series drills, offering extra reach without sacrificing rigidity. The spiral flute with web-thinned, tapered web construction reduces thrust during penetration and improves chip evacuation. Machinists, maintenance technicians, and metalworking professionals will find this bit well-suited for production and maintenance drilling tasks.

The C08785 is intended for use in ferrous metal applications including alloy steel, carbon steel, and cast iron. The taper length body gives it additional reach compared to a standard jobber bit, making it useful when drilling deeper holes or working in confined setups where a longer flute length is required. The straight shank is compatible with standard drill chucks and CNC toolholders. This bit ships individually and is suited for both manual drill press work and automated machining center use where a longer-reach HSS drill is specified.

Key Features

• High-speed steel construction with coated finish for extended tool life in ferrous materials
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Taper length body provides 4-1/8 inch flute length for deeper reach than standard jobber bits
• Right-hand spiral flute promotes efficient chip evacuation during drilling
• Straight shank (0.3281 inch diameter) fits standard drill chucks without adapters
• Meets ASME B94.11M and DIN 340 dimensional standards
• Diameter tolerance held to +0.0000 to -0.0010 inch for consistent fit in close-tolerance applications

Compatibility

Designed for general-purpose drilling in alloy steel, carbon steel, and cast iron. Compatible with any drill press, hand drill, or machining center chuck accepting a straight shank at 0.3281 inch diameter.

Installation Notes

This bit is installed by a machinist or maintenance technician into a standard keyed or keyless drill chuck. Ensure the workpiece is securely clamped and the machine is at a full stop before changing tooling. Use appropriate cutting fluid or coolant when drilling steel to reduce heat buildup and extend bit life. Inspect the cutting edges and web condition before each use and replace the bit if chipping or excessive wear is observed.