Hertel 2387223 Screw Machine Drill Bit Size 3 Hss Tin

Product Description

The HERTEL 2387223 is a screw machine length drill bit designed for high-speed steel cutting applications requiring a compact, rigid tool profile. It is sized to wire gauge Number 3, with a decimal diameter of 0.2130 inches, and features a titanium nitride (TiN) coating that extends tool life by reducing friction and surface wear. The 135-degree split point starts on contact without a center punch, reducing walking on entry. With an overall length of 2.375 inches and a flute length of 1.25 inches, this bit is suited for drilling in tight spaces or short-stroke applications. It is installed by machinists, maintenance technicians, and tool-room professionals.

This drill bit is used in screw machine operations, CNC drilling, manual drill press work, and general metal fabrication. The shortened overall length increases rigidity compared to jobber-length bits, making it a preferred choice when drilling metals such as steel, aluminum, and cast iron where chatter and deflection must be minimized. The straight-cylindrical shank fits standard three-jaw chucks and collet-style toolholders commonly found in production and maintenance environments.

Key Features

• TiN coating reduces friction and extends cutting edge life compared to uncoated HSS
• 135-degree split point eliminates the need for a center punch and reduces thrust force on entry
• Web-thinned, parallel web configuration improves chip evacuation and reduces cutting resistance
• Screw machine length body increases rigidity and reduces deflection in short-reach setups
• Right-hand spiral flute design for standard clockwise drill press and CNC operations
• Straight-cylindrical shank compatible with standard chucks and collet toolholders

Compatibility

Designed as an OEM-style replacement or direct-use screw machine drill bit for standard three-jaw chucks and collet holders accepting a 0.2130-inch straight-cylindrical shank.

Installation Notes

This bit is installed by machinists or maintenance technicians using a drill press, milling machine, or CNC spindle. Secure the shank fully in the chuck or collet before operation and confirm runout is within acceptable limits. Power down and lock out the machine before changing tooling. Use appropriate cutting fluid for the workpiece material to preserve coating life and edge geometry.