Hertel 66693193 No. 33 Hss Tialn Jobber Drill Bit

Product Description

The HERTEL 66693193 is a high speed steel jobber-length drill bit in wire gauge size No. 33, equivalent to 0.1130 inches in decimal diameter. It features a 135-degree split point for fast, self-centering engagement that reduces walking and minimizes the need for a center punch. The TiAlN coating improves surface hardness and heat resistance, extending tool life in demanding drilling applications. At 2-5/8 inches overall length with a 1-1/2 inch flute length, this bit fits standard drill chucks and is suited for production and maintenance environments where hole accuracy and tool longevity matter.

This jobber drill is designed for holemaking in metal and general-purpose materials. The right-hand spiral flute with regular helix angle clears chips efficiently during through-hole and blind-hole operations. The straight cylindrical shank at 0.1130 inches diameter fits standard three-jaw drill chucks without adapters. It is appropriate for use in drill presses, hand drills, and CNC equipment in manufacturing, maintenance, HVAC fabrication, and sheet metal work where small-diameter precision holes are required.

Key Features

• Wire gauge No. 33 size - 0.1130 inch decimal diameter for precise hole sizing
• 135-degree split point reduces thrust force and self-centers on the workpiece surface
• TiAlN coating increases surface hardness and thermal resistance for extended tool life
• Web-thinned, tapered web configuration reduces cutting resistance and improves chip flow
• Right-hand spiral flute with regular helix for efficient chip evacuation
• Heavy duty grade construction rated to NAS specification standards

Compatibility

Designed as a standard jobber-length drill bit for use in any tool holder or chuck accepting a 0.1130-inch straight cylindrical shank, including hand drills, drill presses, and CNC spindles.

Installation Notes

This bit is installed and removed by a licensed or trained machinist, HVAC fabricator, or maintenance technician using a standard keyed or keyless drill chuck. Ensure the shank is fully seated and the chuck is firmly tightened before operation. Always operate at the appropriate spindle speed for the workpiece material and bit diameter to avoid premature coating wear or breakage. Use cutting fluid where the application requires it to further extend tool life.