Hertel 2386365 Screw Machine Drill Bit Size 29 Hss

Product Description

The HERTEL 2386365 is a screw machine length drill bit designed for high-volume drilling operations where rigidity and accuracy matter. Built from high-speed steel with an oxide coating, this bit carries a wire gauge size 29 designation, equivalent to 0.1360 inches in decimal. The 135-degree split point reduces walking on entry and requires no center punch on most materials. A parallel web configuration with web thinning keeps cutting forces low and chip evacuation efficient. The right-hand spiral flute and straight-cylindrical shank make it compatible with standard drill chucks. Intended for use by machinists, tool-and-die technicians, and metalworking tradespeople.

Screw machine length bits are shorter than jobber-length bits, which increases rigidity and reduces deflection in tight setups, turret lathes, screw machines, and CNC drilling applications. The 2386365 is well-suited for production drilling in steel, aluminum, brass, and similar metals where hole location tolerance is critical. The oxide finish provides a moderate level of lubricity and corrosion resistance during dry or lightly lubricated drilling. This bit does not support coolant-through delivery.

Key Features

• 135-degree split point reduces drill walk and eliminates need for center punching on most metals
• Web-thinned parallel web lowers thrust requirements and improves chip flow
• High-speed steel construction handles a broad range of ferrous and non-ferrous metals
• Oxide coating provides light lubricity and surface protection
• Screw machine length body increases rigidity versus jobber-length bits in confined or automated setups
• Straight-cylindrical shank fits standard 3-jaw drill chucks without additional tooling

Compatibility

Designed as an OEM-style replacement or production-supply drill bit for standard 3-jaw drill chucks and collet holders accepting a 0.1360-inch straight shank, in screw machines, turret lathes, drill presses, and CNC machining centers within the applicable size range of 0.1000 to 0.1500 inches.

Installation Notes

A licensed machinist or qualified metalworking technician should install and operate this bit. Secure the shank fully in the chuck or collet before operation and verify runout before beginning a production run. Power down and lock out the machine before changing bits. Do not exceed the recommended speed and feed range for the workpiece material and bit diameter.