Hertel 89321475 Screw Machine Drill Bit Wire 37 Hss

Product Description

The HERTEL 89321475 is a screw machine length (stub length) drill bit sized to wire gauge No. 37, equivalent to 0.1040 inches in diameter. Built from high-speed steel with a bright, uncoated finish, it features a standard 118-degree split point and a two-flute right-hand cutting geometry. The shorter overall length of 1-13/16 inches gives this bit added rigidity compared to jobber-length equivalents, reducing deflection and improving hole accuracy in production drilling and screw machine operations. Licensed machinists, toolroom technicians, and metalworking shops are the primary installers and users of this bit.

This bit is suited to general-purpose drilling in steel, aluminum, brass, and similar metals where a short, rigid tool is preferred. Screw machine length bits are commonly used in CNC lathes, turret lathes, drill presses, and automatic screw machines where minimal tool overhang is critical for maintaining dimensional accuracy. The 0.1040-inch diameter places this bit in the 0.1000 to 0.1500 inch size range, appropriate for tapping pilot holes, clearance holes for small fasteners, and precision production work requiring consistent hole sizing.

Key Features

• Wire gauge No. 37 diameter — 0.1040 inches for precision sizing in production applications
• High-speed steel construction for durability across a broad range of metalworking materials
• 118-degree point angle — standard geometry suitable for general-purpose drilling
• Screw machine (stub) length at 1-13/16 inches OAL for increased rigidity and reduced deflection
• Right-hand cut with two flutes for efficient chip evacuation
• Bright uncoated finish — compatible with standard cutting fluids and coolants

Compatibility

Designed as a general-purpose screw machine length drill bit for use in CNC lathes, turret lathes, drill presses, and automatic screw machines accepting wire gauge tooling in the 0.1000 to 0.1500 inch diameter range.

Installation Notes

This drill bit is installed and used by machinists and toolroom technicians in accordance with standard machine tool practices. Secure the bit firmly in the chuck or collet and verify runout before beginning production runs. Always use an appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain hole quality. Follow the machine manufacturer guidelines for feed rate and spindle speed appropriate to the workpiece material and this bit diameter.