Hertel 2386027 Screw Machine Drill Bit 13/32 in Hss

Product Description

The HERTEL 2386027 is a screw machine length drill bit designed for high-production drilling in metal fabrication, maintenance, and machining applications. Built from high-speed steel with an oxide coating, this bit measures 13/32 inches (0.4062 inches) in diameter and features a 135-degree split point that reduces walking and allows drilling to start without a center punch. The shortened overall length of 3-5/16 inches provides added rigidity over jobber-length bits, making it well suited for drill press and CNC work where stub-length tooling improves accuracy and reduces deflection. Web thinning further lowers thrust requirements when cutting through tougher materials.

Screw machine length drill bits like the 2386027 are commonly used in production shops, tool rooms, and field maintenance environments. The shorter body stiffens the bit in the cut, making it a preferred choice for drilling steel, cast iron, aluminum, and similar materials on drill presses, turret lathes, and automatic screw machines. This bit is sold individually and is appropriate for machinists, maintenance technicians, and trade professionals requiring consistent, precise hole sizing in the 0.4000 to 0.4500 inch decimal range.

Key Features

• 13/32 inch (0.4062 inch) diameter for precise hole sizing in the 0.4000 to 0.4500 inch range
• 135-degree split point reduces thrust and eliminates bit walking on entry
• High-speed steel construction rated for heavy-duty grade applications
• Oxide coating provides mild lubricity and corrosion resistance during cutting
• Web-thinned parallel web reduces cutting resistance and improves chip evacuation
• Straight-cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as a direct-fit screw machine length drill bit for use in standard drill chucks and collet systems that accept straight-cylindrical shanks in the 13/32 inch diameter range.

Installation Notes

Installation is performed by machinists or maintenance technicians using a drill press, lathe, CNC machine, or hand drill with a compatible chuck. Secure the straight-cylindrical shank firmly in the chuck before operation and verify chuck key removal before starting the spindle. Use appropriate cutting fluid for the workpiece material to extend tool life and improve finish quality. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.