Hertel 2387504 Screw Machine Drill Bit Size 33 Tin Hss

Product Description

The HERTEL 2387504 is a screw machine length drill bit designed for high-speed drilling in metal, plastic, and other shop materials. Built from high-speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction at the cutting edge. The bit measures 1-7/8 inches overall length with a 7/8-inch flute length, making it suited to short-reach applications on drill presses, CNC machines, and screw machines. The 135-degree split point geometry reduces walking and allows drilling without a center punch on most surfaces. Web thinning further reduces cutting thrust. This bit is installed and used by machinists, tool room technicians, and production floor operators.

This drill bit is intended for use in screw machine operations, production drilling, and general metalworking applications where a shorter-than-jobber length is required for rigidity and control. The size 33 wire gauge diameter (0.1130 inches) makes it suitable for tap drilling, clearance holes, and precision hole work in both manual and CNC setups. It is sold individually and fits straight-shank drill chucks compatible with the 0.1130-inch shank diameter.

Key Features

• Wire size 33 diameter: 0.1130 inches for precision hole sizing
• 135-degree split point reduces thrust and eliminates center-punch requirement
• TiN coating increases surface hardness and extends cutting life
• Screw machine length (1-7/8 inches OAL) provides added rigidity over jobber-length bits
• Web-thinned parallel web reduces drilling resistance
• Right-hand spiral flute for standard forward-cutting operation
• Straight-cylindrical shank fits standard drill chucks without modification

Compatibility

Designed as a direct-fit replacement or production drill bit for any straight-shank chuck accepting a 0.1130-inch shank, including bench drill presses, CNC drilling centers, and manual screw machines.

Installation Notes

Installation is performed by machinists or tool operators. Secure the shank fully in the chuck and verify concentricity before operation. Always power down and lock out the machine before changing bits. Do not exceed the rated speed range for the material being drilled, and apply appropriate cutting fluid when drilling ferrous metals to preserve coating life.