Hertel 89320642 Wire Size 16 Hss Screw Machine Drill Bit

Product Description

The HERTEL 89320642 is a screw machine length drill bit manufactured from high-speed steel (HSS) for general-purpose drilling applications. Screw machine length bits are shorter than jobber-length bits, providing greater rigidity and reduced deflection in close-tolerance work. This bit features a 118-degree split or conventional point angle, a bright uncoated finish, and a right-hand cutting direction. The wire gauge size is 16, equal to 0.1770 inches in decimal, placing it in the 0.1500 to 0.2000 inch size range. Overall length is 2.1875 inches with a flute length of 1.125 inches. Machinists, tool-and-die workers, and maintenance technicians are the primary installers of this style of bit.

This drill bit is suited for use in drill presses, CNC machining centers, turret lathes, and hand-held power drills where a short, rigid bit is required to minimize runout and chatter. The screw machine length profile makes it especially practical for production drilling of through-holes and starting holes in ferrous and non-ferrous metals, plastics, and similar materials. General-purpose grade construction supports a wide range of shop and field applications without requiring specialized tooling setups.

Key Features

• Wire size 16 (0.1770 inches decimal) for precise hole diameter control
• 118-degree point angle — standard geometry for general-purpose drilling in metal and plastic
• High-speed steel construction provides heat resistance and edge retention at moderate cutting speeds
• Screw machine length body increases rigidity and reduces deflection versus jobber-length bits
• Bright uncoated finish — suitable for use with cutting fluid or dry in lower-speed applications
• Right-hand cut — compatible with all standard drill chucks and spindles

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard 3-jaw drill chucks and collet systems accepting round-shank bits in the 0.1770 inch diameter range.

Installation Notes

Installation and use of this bit should be performed by machinists or qualified technicians familiar with cutting tool safety practices. Secure the bit firmly in a properly sized chuck or collet before operation and verify runout with a dial indicator when tolerance is critical. Apply appropriate cutting fluid for ferrous metals to extend tool life and maintain hole quality. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point shows signs of dulling or damage.