Hertel 89321368 Screw Machine Drill Bit No. 2 Hss

Product Description

The HERTEL 89321368 is a screw machine length drill bit sized to No. 2 wire gauge (0.2210 inches decimal equivalent) with a 118-degree split-point angle and a bright, uncoated high-speed steel construction. Screw machine length bits are shorter than jobber-length bits, which improves rigidity and reduces deflection during drilling operations. The right-hand cut geometry suits standard drill chucks and CNC drilling heads. This bit is intended for general-purpose metal drilling applications and is a common tool in machine shops, production environments, and maintenance trades requiring consistent, accurate hole placement in ferrous and non-ferrous materials.

This drill bit fits general-purpose drilling tasks in production machining, fabrication shops, and field maintenance work. Its short overall length of 2.4375 inches (2-7/16 inches) and flute length of 1.3125 inches (1-5/16 inches) make it well-suited for use in tight-clearance setups, drill presses, turret lathes, and screw machine operations where a standard jobber-length bit would be unwieldy or prone to chatter. Machinists, tool and die technicians, and maintenance mechanics are the primary users.

Key Features

• No. 2 wire gauge size at 0.2210 inches decimal equivalent for precision hole sizing
• 118-degree point angle for general-purpose cutting in a broad range of materials
• Screw machine (stub) length body reduces deflection and improves hole accuracy in short-reach setups
• High-speed steel construction provides durability across ferrous and non-ferrous workpieces
• Bright, uncoated finish suitable for standard cutting fluids and coolants
• Right-hand cut orientation compatible with standard drill chucks and CNC tooling

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard drill chucks, CNC drilling heads, turret lathes, and screw machine setups accepting No. 2 wire gauge tooling.

Installation Notes

Secure the bit firmly in a properly rated drill chuck or collet before operation and verify runout before beginning a drilling cycle. Always use appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain hole quality. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point shows signs of damage. Follow all applicable machine guarding and PPE requirements per OSHA and shop safety standards when operating drilling equipment.