Hertel 16691867 Screw Machine Drill Bit 3/32 in Carbide

Product Description

The HERTEL 16691867 is a screw machine length drill bit designed for precision drilling in demanding industrial and trade applications. Built from solid carbide with a titanium nitride (TiN) coating, this bit delivers extended tool life and reduced friction during cutting. It measures 3/32 inch (0.0938 inch decimal) in diameter with a 1-3/4 inch overall length. The 135-degree split point geometry promotes accurate hole starting without a center punch and reduces thrust requirements. Right-hand cutting with a slow spiral, parallel web configuration, and web-thinned construction make it well suited for short-reach, high-accuracy work in tough materials.

This bit is intended for use on cast iron, nickel alloy, stainless steel, titanium alloy, and tool steel workpieces. The screw machine length format provides a rigid, short-body profile that reduces deflection and chatter, making it a standard choice for production drilling, CNC machining centers, drill presses, and manual operations where close-tolerance holes are required. Machinists, tool-and-die workers, and industrial maintenance technicians commonly specify this style for applications where standard jobber-length bits lack the rigidity needed.

Key Features

• Solid carbide construction rated at material grade C2 for hardness and wear resistance
• Titanium nitride (TiN) coating reduces friction and extends cutting life
• 135-degree split point with web thinning for accurate self-starting and reduced thrust
• Slow spiral flute design optimized for hard, short-chipping materials such as cast iron and stainless steel
• Straight-cylindrical shank compatible with standard drill chucks and collets
• Tight diameter tolerance of +0.0000 to -0.0005 inch for consistent, close-tolerance hole quality

Compatibility

Designed as an OEM-style replacement screw machine length drill bit suitable for use in standard drill chucks, collets, and toolholders accepting a straight-cylindrical shank in the 3/32 inch size range.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Ensure the machine spindle is fully stopped and power is locked out before changing or inspecting bits. Secure the shank firmly in a properly sized chuck or collet to the manufacturer-recommended clamping depth to prevent slippage. Solid carbide tooling is brittle and should not be subjected to side loads, interrupted cuts beyond its rated capacity, or drops onto hard surfaces, as chipping or fracture can result.