Hertel 16691834 Screw Machine Drill Bit 3/16 Inch Carbide

Product Description

The HERTEL 16691834 is a solid carbide screw machine length drill bit with a 3/16 inch diameter, designed for high-performance drilling in demanding materials. Built from C2-grade solid carbide and coated with titanium nitride (TiN), it delivers extended tool life and reduced friction in tough applications. The 135-degree split point promotes accurate starting without a center punch and reduces thrust. With an overall length of 2.125 inches and a slow spiral flute design, this bit is suited for machinists, tool-and-die shops, and maintenance professionals working with hard or abrasive workpiece materials.

This drill bit is intended for use on cast iron, nickel alloys, stainless steel, titanium alloys, and tool steel. The screw machine length format makes it a good fit for drill presses, CNC machining centers, and turret lathes where rigidity and short projection are required. The straight-cylindrical shank seats in standard chucks and collets without modification. It is a common choice in production drilling environments where hole accuracy and tool longevity are priorities.

Key Features

• Solid carbide C2-grade construction for rigidity and wear resistance in hard materials
• Titanium nitride (TiN) coating reduces friction and extends tool life
• 135-degree split point for accurate self-starting and reduced drilling thrust
• Slow spiral, web-thinned, parallel web design optimized for tough workpiece materials
• Right-hand cut with 2-flute spiral configuration
• Diameter tolerance held to +0.0000 to -0.0005 inches for precise hole sizing

Compatibility

Designed for use in standard drill chucks and collets accepting a straight-cylindrical shank. Primary workpiece materials include cast iron, nickel alloy, stainless steel, titanium alloy, and tool steel.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with cutting tool setup. Ensure the machine spindle is fully stopped and the chuck or collet is properly tightened before beginning any drilling operation. Solid carbide tooling is brittle and should not be subjected to side loading or interrupted cuts beyond its rated capacity. Follow applicable shop safety standards and machine manufacturer guidelines for speeds and feeds.