Hertel 2386860 Screw Machine Drill Bit 23/64 in Hss Tin

Product Description

The HERTEL 2386860 is a screw machine length drill bit designed for high-production drilling in metal, steel, and other ferrous materials. Built from heavy-duty high-speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction in demanding applications. The 135-degree split point reduces the force needed to start a hole and eliminates the need for a center punch on most materials. At 3-1/16 inches overall length and a 23/64-inch diameter (0.3594 inches decimal), this bit is proportionally shorter than jobber-length equivalents, which improves rigidity and reduces deflection at higher feed rates.

Screw machine length drill bits are standard equipment in CNC machining centers, turret lathes, and drill presses where shorter tool projection improves accuracy and reduces chatter. The 2386860 suits production environments, fabrication shops, and maintenance operations where holes in the 0.3500 to 0.4000 inch diameter range are drilled repeatedly. The right-hand spiral flute and web-thinned parallel web configuration support efficient chip evacuation without coolant-through capability, making it appropriate for conventional flood or dry drilling setups.

Key Features

• TiN coating extends tool life and reduces built-up edge on ferrous materials
• 135-degree split point for self-centering entry and reduced thrust force
• Web-thinned parallel web improves chip flow and reduces heat buildup at the cutting edge
• Heavy-duty high-speed steel construction rated for high-production use
• Screw machine (stub) length provides greater rigidity than jobber-length equivalents
• Right-hand cut with regular spiral flute for standard drilling operations

Compatibility

Designed as a standard straight-cylindrical shank drill bit compatible with drill chucks and collet holders accepting 23/64-inch shank diameters in drill presses, CNC machining centers, and turret lathes.

Installation Notes

Installation and tool changes should be performed with the machine powered off and locked out per applicable OSHA lockout/tagout procedures. Ensure the chuck or collet is clean and free of chips before seating the shank. Verify spindle speed and feed rate are appropriate for the workpiece material before engaging the cut. A qualified machinist or tool and die technician should handle setup in production environments.