Hertel 2387462 Screw Machine Drill Bit Size 29 Hss Tin

Product Description

The HERTEL 2387462 is a screw machine length drill bit designed for high-speed steel cutting with a titanium nitride (TiN) coating for extended tool life and reduced friction. Built to wire gauge size 29, it has a decimal diameter of 0.1360 inches and an overall length of 1-15/16 inches, making it well-suited for short-reach drilling in tight clearances. The 135-degree split point geometry reduces walking on entry and lowers the thrust required to start the hole. Right-hand spiral fluting clears chips efficiently during operation. This bit is commonly installed in screw machine setups, drill presses, and handheld power drills used by machinists, pipefitters, electricians, and general trade professionals.

This drill bit fits standard screw machine and production drilling applications where a short, rigid bit is preferred over jobber length. The 0.1360-inch diameter falls within the 0.1000 to 0.1500 inch size range, covering a common class of pilot holes, clearance holes, and tapping prep work. It is appropriate for use in ferrous and non-ferrous metals where TiN coating provides meaningful performance advantages over uncoated HSS. The straight-cylindrical shank seats in standard drill chucks without the need for adapters.

Key Features

• Wire gauge size 29, 0.1360 inch decimal diameter for precise hole sizing
• 135-degree split point reduces entry thrust and minimizes bit walking
• TiN coating extends tool life and reduces heat buildup during drilling
• Web-thinned parallel web construction for improved chip evacuation
• Screw machine length at 1-15/16 inches OAL provides rigidity in short-reach setups
• Right-hand spiral flute, straight-cylindrical shank fits standard drill chucks

Compatibility

Designed as a standard screw machine length drill bit with a straight-cylindrical shank compatible with conventional drill chucks and screw machine spindles sized for 0.1360-inch shank tooling.

Installation Notes

Installation is performed by machinists or trade professionals using a drill press, CNC screw machine, or handheld power drill with a keyed or keyless chuck. Secure the shank fully in the chuck before operation and confirm the workpiece is clamped or fixtured. Do not exceed the recommended feed rate or spindle speed for the material being drilled, as overfeeding a small-diameter bit can cause breakage. Inspect the cutting edges and TiN coating before each use and replace the bit if chipping or coating wear is observed.