Hertel 89320741 Screw Machine Drill Bit 11/16 in Hss

Product Description

The HERTEL 89320741 is a screw machine length drill bit designed for high-speed steel cutting in general-purpose drilling applications. Built from high-speed steel (HSS) with a bright, uncoated finish, this bit features a 118-degree split point and a right-hand cut direction. At 11/16 inch (0.6875 inch) in diameter, it delivers reliable performance in metal, wood, and plastic across a wide range of production and maintenance drilling tasks. The shorter-than-standard screw machine length profile improves rigidity and reduces deflection, making it well suited for drilling on drill presses, screw machines, and CNC equipment where stub-length stability matters.

This drill bit is intended for use in machine shop, manufacturing, and maintenance environments where controlled, accurate hole-making in metals and similar materials is required. The screw machine length design is common in production drilling setups, automatic screw machines, and turret lathes. It is also a practical choice for field maintenance techs and trade professionals who need a stiff, short-bodied bit for precision drilling in tight clearances or with hand-held drill motors.

Key Features

• 11/16 inch (0.6875 inch) diameter for medium-to-large bore applications
• 118-degree point angle — standard geometry suitable for general-purpose metal and wood drilling
• High-speed steel construction provides heat resistance and edge retention during continuous drilling
• Screw machine (stub) length body reduces deflection and increases rigidity compared to jobber length bits
• Bright, uncoated finish — no coating buildup to affect hole tolerance
• Right-hand cut direction for standard drill motor and machine spindle use

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard drill chucks, turret lathes, automatic screw machines, drill presses, and CNC machining centers accepting 11/16 inch shank tooling.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with rotating cutting tool safety. Secure the bit firmly in a properly sized drill chuck or collet before operation and verify spindle runout is within acceptable limits to avoid bit breakage. Always power down and lock out the machine before changing tooling. Use appropriate cutting fluid or lubricant for the material being drilled to extend bit life and maintain hole quality.