Hertel 84578178 Jobber Length Drill Bit Wire 62 Hss

Product Description

The HERTEL 84578178 is a jobber length drill bit sized to wire gauge No. 62, equivalent to 0.0380 inches in diameter. It is manufactured from high speed steel with a bright, uncoated finish and is designed for general purpose drilling in metal, wood, and plastic. The bit features a standard 118-degree split point with web thinning for improved penetration and reduced walking on entry. A spiral flute design with regular helix promotes efficient chip evacuation. The straight-cylindrical shank fits standard drill chucks. This bit is sold individually and is well suited for maintenance, fabrication, and toolroom applications where small-diameter precision holes are required.

This drill bit is intended for use in hand-held drill presses, bench-top drill presses, and CNC machining centers capable of holding straight-shank tooling at this diameter. Wire gauge No. 62 is a common size in precision tapping, instrumentation work, small fastener clearance drilling, and sheet metal fabrication. The 1.5-inch overall length and 0.625-inch flute length make it appropriate for shallow-to-moderate depth holes in thin stock and light material. HVAC, electrical, and plumbing trades use this size for pilot and clearance holes in sheet metal enclosures and light-gauge brackets.

Key Features

• Wire gauge No. 62 sizing at 0.0380 inches diameter for tight-tolerance small-hole work
• High speed steel construction provides hardness and wear resistance across a range of common materials
• 118-degree standard point angle with web thinning reduces thrust and improves center-start accuracy
• Spiral flute with regular helix supports chip clearing in shallow holes
• Bright uncoated finish allows direct visual inspection of cutting edge condition
• Straight-cylindrical shank compatible with standard keyless and keyed drill chucks

Compatibility

Designed as a general purpose replacement or stock bit for any drill press, hand drill, or machining center accepting a straight-cylindrical shank at 0.0380 inches diameter.

Installation Notes

Installation is performed by machinists, tool-and-die workers, and trade technicians using standard drill chucks. Secure the shank fully in the chuck and verify runout before drilling. At this diameter, use appropriate low feed pressure to avoid bit breakage, and ensure the workpiece is clamped securely. Replace the bit at the first sign of cutting edge dulling to maintain hole quality and prevent snapping.