Hertel 2386498 Size 42 Screw Machine Drill Bit Hss

Product Description

The HERTEL 2386498 is a wire gauge Size 42 screw machine length drill bit designed for short-hole drilling and high-precision spot work in metal, plastic, and composite materials. Built from high-speed steel with an oxide finish, it features a 135-degree split point for fast penetration and reduced walking without a center punch. The web-thinned, parallel-web construction improves chip evacuation and reduces thrust. At 1.75 inches overall length, this stub-length geometry provides rigidity in confined spaces, making it a reliable choice for production drilling, fixture work, and tight-tolerance applications in machining and fabrication environments.

This drill bit is suited for use on drill presses, CNC machining centers, and hand-held power tools where a short, stiff cutting tool is required. The 0.0935-inch decimal diameter makes it appropriate for tapping prep, clearance holes, and precision layout work in light metals and plastics. Right-hand cutting direction is standard for conventional clockwise spindle rotation. The straight-cylindrical shank seats securely in standard drill chucks without special toolholders.

Key Features

• Wire gauge Size 42 (0.0935 inch decimal) for precise hole sizing
• 135-degree split point reduces thrust and eliminates center-punch requirement
• High-speed steel construction with oxide coating for heat and wear resistance
• Screw machine (stub) length at 1.75 inches OAL delivers superior rigidity
• Web-thinned parallel web improves chip flow and reduces cutting friction
• Straight-cylindrical shank compatible with standard drill chucks

Compatibility

Designed as a standard-style screw machine length drill bit for use in drill presses, CNC machining centers, and handheld power tools equipped with a drill chuck capable of accepting a 0.0935-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with rotating cutting tools. Ensure the spindle is fully stopped and the machine is powered down before changing bits or adjusting chuck tightness. Confirm chuck jaws are fully secured around the shank before beginning any cut. Follow applicable shop safety standards and manufacturer guidelines for spindle speeds appropriate to the workpiece material and bit diameter.