Hertel 16704900 Screw Machine Drill Bit No. 22 Carbide

Product Description

The HERTEL 16704900 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from solid carbide, it delivers the rigidity and heat resistance required when cutting cast iron, nickel alloys, stainless steel, titanium alloys, and tool steel. The 135-degree split-point geometry reduces walking at entry and lowers thrust requirements, making it well suited for production drilling applications where precision and tool life are priorities. At 2.125 inches overall length, this stubby format limits deflection and suits drill press and CNC machining center work where rigid setups are standard.

This drill bit is sized at No. 22 wire gauge, corresponding to 0.1570 inch decimal diameter, and falls within the 0.1500 to 0.2000 inch drill bit size range. It is intended for use in metalworking environments including job shops, aerospace component production, and maintenance shops where stainless steel and nickel alloy materials are regularly machined. The screw machine length format is a common choice in turret lathes, machining centers, and production drill presses where reduced overhang improves hole accuracy and surface finish.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive metals
• 135-degree split point reduces entry walking and cutting thrust
• Slow spiral flute design promotes chip control in tough, stringy, or work-hardening materials
• Bright uncoated finish suitable for applications where coating compatibility or regrinding is a consideration
• Straight cylindrical shank fits standard drill chucks and collets without adapters
• Screw machine length minimizes deflection for tighter hole tolerances

Compatibility

Designed as a screw machine length drill bit for use with standard straight-shank drill chucks and collets in drill presses, turret lathes, and CNC machining centers. Rated for cast iron, nickel alloy, stainless steel, titanium alloy, and tool steel workpiece materials.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or tooling technician. Ensure the spindle and workpiece are properly secured before engaging the cut. Verify chuck or collet concentricity prior to use to preserve hole tolerance and tool life. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material being drilled.