Hertel 2385953 Screw Machine Drill Bit 19/64 in Hss

Product Description

The HERTEL 2385953 is a screw machine length drill bit designed for high-production drilling in metal fabrication, maintenance, and mechanical trade applications. Built from high-speed steel with an oxide coating, it measures 19/64 inch (0.2969 inch decimal) in diameter with a 2-3/4 inch overall length. The 135-degree split point reduces walking and requires less thrust to start a hole compared to standard 118-degree points. Web thinning improves chip evacuation and reduces heat buildup at the cutting edge. This bit is suited for machinists, millwrights, and mechanical contractors working in tight-clearance setups where standard length bits are too long.

Screw machine length drill bits are shorter than jobber-length bits, making them more rigid and less prone to deflection in close-quarters drilling. The HERTEL 2385953 fits standard drill chucks and is appropriate for use in drill presses, CNC machines, and handheld power drills where a rigid, compact cutting tool is needed. Typical applications include drilling ferrous and non-ferrous metals, plastics, and similar materials in production or field maintenance environments. The right-hand spiral flute design is compatible with standard right-hand spindle rotation.

Key Features

• 135-degree split point reduces bit walking and lowers required entry thrust
• Web-thinned parallel web construction improves chip flow and reduces heat at the tip
• Oxide coating provides mild corrosion resistance and reduces friction during cutting
• Screw machine length body increases rigidity and reduces deflection versus jobber-length bits
• Heavy-duty drill bit grade rated for demanding production and maintenance use
• Straight-cylindrical shank fits standard 3-jaw drill chucks without adapters

Compatibility

Designed as a direct-fit replacement or standard-stock screw machine length drill bit for any application requiring a 19/64 inch diameter bit with a straight-cylindrical shank in the 0.2500 to 0.3000 inch decimal size range.

Installation Notes

Installation is performed by machinists, toolroom technicians, and mechanical trade professionals familiar with drilling operations. Secure the shank fully in the drill chuck and verify concentricity before beginning a cut. Follow all applicable machine guarding requirements and wear appropriate eye protection. Do not exceed the recommended feed and speed ratings for the material being drilled, and allow adequate chip clearance to prevent heat buildup.