Hertel 89320626 Drill Bit Size 20 0.1610 in Hss

Product Description

The HERTEL 89320626 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal fabrication, machining, and general shop work. Built from high-speed steel (HSS) with a bright, uncoated finish, it is sized to wire gauge No. 20, equivalent to 0.1610 inches. The 118-degree standard point angle suits a wide range of general-purpose drilling applications. At 2.125 inches overall length, this stubby format reduces deflection and improves rigidity in drill presses, screw machines, and CNC turret setups. Two regular spiral flutes provide efficient chip evacuation. Machinists, tool-and-die techs, and maintenance mechanics are the primary users.

This bit is suited to production drilling in metals including mild steel, aluminum, brass, and similar machinable materials. The screw machine length format is preferred where shorter tool projection reduces chatter, such as in turret lathes, automatic screw machines, and benchtop drill presses. The general-purpose grade and straight shank make it compatible with standard drill chucks. No coolant-through capability is incorporated, so conventional flood or mist coolant is applied externally where needed.

Key Features

• Wire gauge size No. 20, decimal equivalent 0.1610 inches
• High-speed steel construction for durability across general-purpose metals
• Bright, uncoated finish for use with external coolant or cutting fluid
• 118-degree standard point angle for broad material compatibility
• Screw machine (stub) length at 2.125 inches OAL reduces deflection
• Two regular spiral flutes for consistent chip removal

Compatibility

Designed as a general-purpose screw machine length drill bit for use in standard drill chucks accepting straight shank tooling. Fits drill presses, turret lathes, automatic screw machines, and CNC equipment configured for stub-length drills in the 0.1500 to 0.2000 inch size range.

Installation Notes

Installation is performed by qualified machinists or maintenance mechanics. Secure the straight shank fully in the drill chuck and verify concentricity before running at speed. Always power down and lock out the machine before changing tooling. Apply an appropriate cutting fluid or mist coolant externally when drilling ferrous materials to extend tool life and manage heat.