Hertel 61699849 Screw Machine Drill Bit 0.173 in Hss

Product Description

The HERTEL 61699849 is a screw machine length drill bit designed for high-volume drilling applications where a shorter, more rigid cutting tool is needed. Built from high speed steel with an oxide finish, this bit delivers reliable performance in general-purpose metal drilling. It measures 0.173 inches in diameter, equivalent to wire gauge size 17, with an overall length of 2-3/16 inches and a flute length of 1-1/8 inches. The 118-degree point angle and standard point geometry make it well suited for drilling into a wide range of workpiece materials. Licensed machinists, tool and die technicians, and maintenance trades install and operate this type of tooling.

This drill bit is used in screw machine operations, drill press setups, and hand-held drilling applications where a compact stub-length bit reduces deflection and improves hole accuracy. The shorter flute-to-diameter ratio of 3xD limits runout in close-tolerance work. It fits applications in light manufacturing, HVAC sheet metal fabrication, electrical enclosure work, and general maintenance environments requiring wire gauge sized holes in the 0.150 to 0.200 inch range.

Key Features

• High speed steel construction with oxide finish for improved surface hardness and lubricity
• 118-degree standard point angle for general-purpose drilling across common metals and plastics
• Screw machine length body reduces deflection and improves rigidity compared to jobber-length bits
• 2-flute spiral design promotes efficient chip evacuation during drilling
• Straight-cylindrical shank compatible with standard drill chucks and collet holders
• Right-hand cut, ANSI-specification geometry for consistent, repeatable hole quality

Compatibility

Designed as a general-purpose screw machine length drill bit for use in standard drill chucks and collet systems accepting a straight-cylindrical shank, suitable for applications requiring a 0.173 inch diameter hole in the 0.150 to 0.200 inch size range per ANSI specification.

Installation Notes

This bit is installed by machining professionals and maintenance technicians in drill press, CNC turret, or hand drill applications. Ensure the chuck or collet is fully tightened and the workpiece is securely fixtured before operation. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point geometry is compromised. Coolant-through is not supported on this bit; apply cutting fluid externally when drilling ferrous materials to extend tool life.