Hertel 61698585 Screw Machine Drill Bit 11/16 in Hss

Product Description

The HERTEL 61698585 is a screw machine length drill bit designed for high-production drilling in metal, wood, and general-purpose materials. Built from high-speed steel with an oxide coating, it measures 11/16 inches (0.6875 inches) in diameter with a standard 118-degree point angle and a right-hand cutting direction. The stub-length design keeps the bit rigid and reduces deflection in tight setups or drill press applications. At 4-5/8 inches overall length, it fits standard chucks and short-stroke machines where a jobber-length bit would be impractical. Two spiral flutes evacuate chips efficiently throughout the cut.

This bit is suited for metal fabrication, machine shops, and maintenance applications requiring consistent, repeatable hole quality in ferrous and non-ferrous materials. The straight-cylindrical shank seats securely in three-jaw chucks and quick-change holders. The 3xD flute-to-diameter ratio and 2-7/8-inch flute length are optimized for shallow-to-medium-depth holes typical in production line and repair-shop environments. Licensed machinists, millwrights, and industrial maintenance technicians are the primary users.

Key Features

• 11/16 inch (0.6875 inch) diameter with standard 118-degree split-point geometry for self-centering on flat stock
• High-speed steel construction provides heat resistance during continuous drilling cycles
• Oxide coating reduces friction and extends cutting edge life
• Screw machine (stub) length at 4-5/8 inches overall reduces chatter and deflection versus jobber-length bits
• Right-hand cut, straight-cylindrical shank for universal chuck compatibility
• Two regular spiral flutes with 2-7/8 inch flute length for reliable chip evacuation

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard three-jaw chucks, keyless chucks, and quick-change tool holders accepting a straight-cylindrical shank in 11/16 inch diameter. Conforms to ANSI specification.

Installation Notes

Install and remove this bit only when the drill press, lathe, or mill is fully powered down and the spindle has stopped completely. Secure the straight-cylindrical shank firmly in the chuck to the full depth of the jaws to prevent slippage under load. Use appropriate cutting fluid for ferrous materials to maintain edge life and control heat buildup. Inspect the cutting edges for wear or chipping before each use and replace when point geometry is compromised.