Hertel 2386183 Screw Machine Drill Bit Size 11 Hss

Product Description

The HERTEL 2386183 is a screw machine length drill bit designed for high-production drilling in metal fabrication, machining, and general industrial applications. Built from high-speed steel with an oxide coating, it accepts standard right-hand rotation and features a 135-degree split point that reduces walking and allows drilling to start without a center punch in many setups. The web-thinned, parallel-web construction reduces thrust load during penetration. At 2.25 inches overall length, this stub-length geometry provides added rigidity compared to jobber-length bits, making it well suited to drill press and CNC operations where chatter and deflection are concerns.

This drill bit is sized at wire gauge Number 11, which corresponds to 0.191 inch decimal diameter. It is commonly used in metal shops, maintenance facilities, and light manufacturing environments for drilling through steel, aluminum, and similar materials. The straight-cylindrical shank seats securely in standard drill chucks and collets. Screw machine length bits are a standard choice when the application calls for a stiffer, shorter tool with tighter hole-location tolerance than a full-length jobber drill provides.

Key Features

• 135-degree split point reduces bit walk and lowers required thrust force at entry
• Web-thinned parallel web further reduces cutting resistance and heat buildup
• High-speed steel construction handles a wide range of ferrous and non-ferrous workpiece materials
• Oxide coating provides mild lubricity and corrosion resistance during storage and use
• Screw machine (stub) length body increases rigidity and reduces deflection in deep-reach setups
• Straight-cylindrical shank fits standard three-jaw drill chucks and ER collets without adapters

Compatibility

Designed as a direct-fit replacement or standard-stock screw machine length drill bit for any drill press, CNC machining center, or hand drill equipped with a chuck or collet accepting a 0.191 inch straight-cylindrical shank.

Installation Notes

This bit is installed and serviced by machinists, tool-and-die technicians, and maintenance mechanics. Always power down and lock out the spindle before changing tooling. Secure the shank fully within the chuck or collet to the recommended engagement depth before tightening. Inspect the cutting edges and point geometry for damage before each use, and replace the bit if chipping or excessive wear is observed.