Hertel H95006138 Jobber Drill Bit Wire 39 Hss

Product Description

The HERTEL H95006138 is a high speed steel jobber-length drill bit in wire gauge size 39, with a decimal diameter of 0.0995 inches. It features a 137-degree split point and an oxide finish for improved lubricity and heat resistance during drilling operations. The two-flute, right-hand spiral design evacuates chips efficiently in standard holemaking applications. With an overall length of 2.375 inches and a flute length of 1.125 inches, this bit is suited for use in drill presses, CNC machines, and handheld power tools. It is classified as a heavy-duty grade bit conforming to ANSI specifications.

This bit is designed for production and maintenance holemaking in metal, wood, and plastics where a small-diameter, wire-gauge hole is required. The 137-degree split point geometry reduces walking and requires less thrust force than a standard 118-degree point, making it well suited for drilling into harder materials or when starting without a center punch. Typical users include machinists, tool and die technicians, industrial maintenance crews, and metal fabricators working in light manufacturing or repair environments.

Key Features

• Wire gauge size 39 with 0.0995-inch decimal diameter for precision small-bore holemaking
• 137-degree split point reduces drill walk and lowers required feed force
• High speed steel construction with oxide finish for heat resistance and extended tool life
• Right-hand, two-flute regular spiral for efficient chip evacuation
• Heavy-duty grade, ANSI-compliant jobber series with 2.375-inch overall length
• No coolant-through design — suitable for conventional dry or flood-coolant setups

Compatibility

Designed as a standard jobber-length drill bit compatible with any 3-jaw drill chuck or collet system accepting round-shank bits in the 0.0500- to 0.1000-inch diameter range, per ANSI jobber series specifications.

Installation Notes

Secure the bit firmly in a properly sized chuck or collet before operation and verify runout is within acceptable limits for the diameter. Use appropriate cutting fluid or coolant for the workpiece material to extend bit life and maintain hole quality. Wear eye protection and ensure the workpiece is clamped securely before starting the cut. Inspect the cutting edges for wear or chipping before each use, as small-diameter bits are susceptible to breakage under side load or excessive feed pressure.