Hertel 2386084 Screw Machine Drill Bit 1/2 in Hss

Product Description

The HERTEL 2386084 is a screw machine length drill bit designed for high-production drilling in metal, wood, and general-purpose materials. It features a 1/2 inch diameter, a 135-degree split point for self-centering starts without a center punch, and a web-thinned construction that reduces thrust and improves chip evacuation. The bit is ground from high-speed steel with an oxide coating for added wear resistance and corrosion protection. At 3.75 inches overall length and 2.25 inches of flute length, this is a stubby, rigid tool suited for tight-clearance work and machine setups where a standard jobber-length bit would flex or chatter.

This bit is intended for use in drill presses, milling machines, CNC machining centers, and hand-held power drills where a stiff, short-body drill is preferred. The straight cylindrical shank fits standard drill chucks without adapters. The heavy-duty grade construction and right-hand spiral flute make it a reliable choice for machinists, millwrights, and maintenance technicians working in metal fabrication, equipment repair, and production environments.

Key Features

• 135-degree split point self-centers on contact, reducing walking on hard or smooth surfaces
• Web-thinned with parallel web configuration for lower cutting thrust
• High-speed steel construction rated for heavy-duty drilling applications
• Oxide coating improves surface hardness and resists corrosion
• Screw machine (stub) length body increases rigidity and reduces deflection
• Right-hand cutting, regular spiral flute for efficient chip clearance

Compatibility

Designed as a direct-fit screw machine length drill bit for any standard drill chuck accepting a straight cylindrical shank in the 1/2 inch diameter range.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a keyed or keyless drill chuck rated for the 1/2 inch shank diameter. Secure the shank fully in the chuck before operation and confirm the workpiece is clamped or fixtured to prevent rotation under load. Inspect the cutting edges for wear or chipping before each use and replace if edge integrity is compromised. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speeds and feed rates when drilling ferrous or hardened materials.