Hertel 61699070 Screw Machine Drill Bit 17/64 Hss

Product Description

The HERTEL 61699070 is a screw machine length drill bit designed for general-purpose drilling in metal, wood, and similar materials. Built from high speed steel with an oxide finish, this bit delivers consistent cutting performance in production and maintenance applications. It features a 118-degree standard point angle, a right-hand spiral flute configuration, and a straight-cylindrical shank for secure chuck engagement. At 0.266 inches (17/64 inch, Letter H) in diameter and 2-11/16 inches overall length, the shortened screw machine geometry reduces deflection and improves rigidity compared to jobber-length bits. Licensed HVAC techs, machinists, pipefitters, and general maintenance trades keep these in regular rotation for close-tolerance hole work in confined spaces.

This drill bit is suited for production drilling, repair, and fabrication tasks where a compact, rigid bit is preferred over a standard jobber-length tool. The 1-1/2 inch flute length and 3xD flute-to-diameter ratio make it effective in drill press, turret lathe, and handheld power drill applications. It is a general-purpose bit appropriate for light to moderate-duty use across residential and commercial trade environments.

Key Features

• High speed steel construction provides hardness and wear resistance for metal drilling
• Oxide finish reduces friction and provides mild corrosion resistance during storage and use
• 118-degree standard point angle for general-purpose material entry
• Screw machine (stub) length reduces deflection in tight spaces and short-reach applications
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• Straight-cylindrical shank fits standard 3-jaw chucks and collet systems

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with any standard 3-jaw chuck or collet accepting a straight-cylindrical shank in the 17/64 inch diameter range.

Installation Notes

Installation should be performed by qualified tradespeople familiar with rotating cutting tools and applicable shop safety practices. Secure the shank fully in the chuck before operation and verify runout before drilling. Power down and de-energize the drill press or power tool before changing bits. Do not exceed the recommended feed and speed ratings for the material being drilled.