Hertel 16691842 Screw Machine Drill Bit 1/16 in Carbide

Product Description

The HERTEL 16691842 is a screw machine length drill bit designed for high-precision drilling in demanding trade and industrial applications. Built from solid carbide grade C2 with a titanium nitride (TiN) coating, this bit delivers extended tool life and reduced friction across hard and abrasive workpiece materials. The 135-degree split point geometry combined with web thinning promotes fast, accurate penetration with minimal walking. At 0.0625 inches in diameter and 1.625 inches overall length, it is engineered for compact, tight-tolerance work in metalworking and maintenance environments. Right-hand cut with a slow spiral and straight-cylindrical shank for standard chuck compatibility.

This drill bit is suited for drilling cast iron, nickel alloy, stainless steel, titanium alloy, and tool steel. It is commonly used by machinists, tool and die professionals, HVAC fabricators, and maintenance technicians requiring reliable small-diameter drilling in hard metals. The screw machine length format provides added rigidity over jobber-length bits, making it appropriate for CNC machining centers, drill presses, and hand-held operations where chatter and deflection must be minimized. Single-unit packaging supports bench-stock and individual replacement use.

Key Features

• Solid carbide C2 grade construction for durability in hard and abrasive materials
• Titanium nitride (TiN) coating reduces friction and extends cutting life
• 135-degree split point with web thinning for fast starts and reduced thrust
• Slow spiral flute design optimized for chip evacuation in tough metals
• Straight-cylindrical shank fits standard drill chucks without adapters
• Diameter tolerance of +0.0000 to -0.0005 inches for tight-tolerance applications

Compatibility

Designed as a screw machine length replacement drill bit for use in standard straight-shank drill chucks across CNC machining centers, drill presses, and portable drilling equipment where a 1/16 inch solid carbide bit is specified.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with carbide tooling. Secure the shank fully in the chuck and verify runout before drilling to prevent bit breakage at this small diameter. Solid carbide bits are brittle and must not be subjected to side loads or used in flexible or wobbling chuck configurations. Power down and de-energize or lock out all equipment before changing tooling, per applicable OSHA lockout/tagout procedures.