Hertel 61699757 Screw Machine Drill Bit 0.089in Wire 43

Product Description

The HERTEL 61699757 is a screw machine length drill bit designed for high-speed steel cutting in general-purpose metalworking and machining applications. Built from high speed steel with an oxide finish, it features a 0.089 inch diameter corresponding to Wire Gauge 43, a standard 118-degree split point angle, and a straight cylindrical shank for secure chuck engagement. The shortened screw machine length body reduces overhang and deflection, making it well suited for production drilling in tight setups. With a regular spiral flute and right-hand cut, it delivers efficient chip evacuation in a wide range of ferrous and non-ferrous materials.

This drill bit is intended for use in screw machine operations, drill presses, CNC machining centers, and manual milling setups where a compact, rigid drill is required. The 0.089 inch diameter places it in the small-diameter range appropriate for tapping pilot holes, precision part drilling, and similar close-tolerance work. It is typically installed and used by machinists, tool and die makers, and maintenance technicians working in light manufacturing and fabrication environments.

Key Features

• 0.089 inch diameter, Wire Gauge 43 sizing for precise small-hole applications
• High speed steel construction for durability across general-purpose materials
• Oxide finish provides basic corrosion resistance and reduces friction during cutting
• 118-degree standard point angle for broad material compatibility
• Screw machine length body reduces deflection in short-reach drilling setups
• Right-hand cut with regular spiral flute for consistent chip removal

Compatibility

Designed as an OEM-style general-purpose screw machine length drill bit compatible with any standard straight-shank drill chuck accepting a 0.089 inch diameter tool.

Installation Notes

Installation and use should be performed by qualified machinists or technicians familiar with drill press and machining center operation. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck. Secure the straight cylindrical shank firmly in the chuck to the full grip depth to prevent slippage during cutting. Use appropriate cutting fluid or coolant as required by the workpiece material to extend tool life and maintain hole quality.