Hertel 61699161 Screw Machine Drill Bit 0.204 in Hss

Product Description

The HERTEL 61699161 is a screw machine length drill bit designed for high-speed steel drilling applications in metal, wood, and general-purpose materials. Built from high speed steel with an oxide finish, this bit features a 0.204 inch (No. 6 wire gauge) diameter, a 118-degree standard point angle, and a right-hand spiral flute configuration. At 2-3/8 inches overall length with a 1-1/4 inch flute length, the screw machine format is shorter than jobber-length bits, making it well suited for tight clearance drilling and chucking in drill presses, lathes, and CNC turret setups. Licensed machinists, tool and die technicians, and general maintenance mechanics are the primary installers.

This bit is sized to the No. 6 wire gauge standard (0.2040 inches decimal) and falls within the 0.2000 to 0.2500 inch drill bit size range. The reduced overall length improves rigidity and reduces deflection in short-hole and through-hole operations on metal workpieces. Its straight-cylindrical shank seats directly into standard three-jaw chucks and collet holders without additional adapters, making it a practical choice for production floor and maintenance shop environments.

Key Features

• High speed steel construction for general-purpose metal drilling
• Oxide finish for corrosion resistance and reduced friction during cutting
• 118-degree standard point angle for center-starting on flat stock
• Right-hand cut with regular spiral flute for efficient chip evacuation
• Screw machine length (2-3/8 inches overall) for improved rigidity in confined setups
• Straight-cylindrical shank compatible with standard chucks and collet systems

Compatibility

Designed as an OEM-style general purpose screw machine length drill bit fitting standard three-jaw chucks and collet holders accepting a straight-cylindrical shank in the 0.204 inch diameter range.

Installation Notes

Installation is performed by machinists and maintenance technicians using standard drill press, lathe, or CNC turret equipment. Secure the shank fully in the chuck or collet before operating and verify runout is within acceptable tolerance for the application. Always power down and de-energize the machine spindle before changing bits. Follow applicable shop safety standards and wear appropriate eye protection during drilling operations.