Hertel 89320758 Screw Machine Drill Bit 13/32 in Hss

Product Description

The HERTEL 89320758 is a screw machine length drill bit designed for general-purpose drilling in metal, plastic, and similar materials. It features a 13/32 inch (0.4062 inch decimal) diameter and a 118-degree point angle, which is the standard geometry for most shop and field drilling applications. The shortened overall length of 3-5/16 inches gives it added rigidity compared to jobber-length bits, reducing deflection in tight clearance situations. Made from high-speed steel with a bright uncoated finish, this bit is suited for use in drill presses, lathes, and handheld power drills. Machinists, maintenance technicians, and trade professionals working in metal fabrication or mechanical installation are the primary users.

Screw machine length bits are commonly used where limited axial clearance prevents the use of a standard jobber-length bit, such as drilling in confined enclosures, machine frames, or close-tolerance fixture work. The 13/32 inch diameter places this bit in the 0.4000 to 0.4500 inch size range, making it appropriate for bolt clearance holes, port drilling, and similar production or service tasks. The right-hand cutting direction is compatible with standard drill spindle rotation on all common drilling equipment.

Key Features

• 13/32 inch (0.4062 inch) diameter for precise, consistent hole sizing
• 118-degree point angle suits general-purpose drilling in ferrous and non-ferrous materials
• Screw machine length body at 3-5/16 inches overall reduces deflection in tight spaces
• 1-15/16 inch flute length provides adequate chip clearance for the shortened format
• High-speed steel construction resists heat buildup at moderate cutting speeds
• Bright uncoated finish allows easy visual inspection of cutting edge condition

Compatibility

Designed as a general-purpose replacement or stock drill bit for use in standard 3-jaw drill chucks and collet systems accepting 13/32 inch shank diameter tooling across drill presses, lathes, and handheld power drills.

Installation Notes

Installation and use of this bit should be performed by machinists or qualified trade technicians familiar with drilling speeds and feeds for the target material. Secure the bit fully in the chuck before operation and verify spindle runout is within acceptable limits to avoid premature edge wear. Use appropriate cutting fluid when drilling steel to extend tool life. Never exceed the rated cutting speed for high-speed steel tooling in hard or abrasive materials.