Hertel 83240481 Cobalt Screw Machine Drill Bit 23/32 in

Product Description

The HERTEL 83240481 is a cobalt screw machine length drill bit designed for high-performance drilling in tough materials. With a 23/32-inch diameter and a 135-degree split point, this bit cuts aggressively with minimal walking on entry. The web-thinned geometry reduces thrust and improves chip evacuation in demanding applications. At 4.75 inches overall length with a 3-inch flute, it fits standard screw machine setups and CNC drilling operations. The straight cylindrical shank measures 0.7188 inches in diameter, compatible with most drill chucks and collet holders. Right-hand spiral fluting and a bright uncoated finish round out the construction of this heavy-duty cutting tool.

This bit is intended for drilling stainless steel, tough alloys, and other work-hardening materials where standard high-speed steel bits lose their edge prematurely. The cobalt steel construction handles the heat generated in these applications without rapid degradation. Typical use cases include maintenance shops, fabrication facilities, and field service work involving stainless fastener holes, plate stock, and structural alloy components. The screw machine length profile keeps the bit rigid and reduces deflection in short-reach drilling situations where rigidity matters most.

Key Features

• Cobalt steel construction rated for drilling stainless steel and tough alloys
• 135-degree split point with web thinning reduces entry thrust and prevents walking
• 23/32-inch diameter with a 3-inch flute length and 4.75-inch overall length
• Straight cylindrical shank at 0.7188 inches diameter for standard chuck compatibility
• Right-hand cut with regular spiral fluting for efficient chip removal
• Heavy-duty grade, series HSCO135, rated for 0.6000-inch diameter and above applications

Compatibility

Designed as a screw machine length replacement or production drill bit for use in CNC machining centers, drill presses, and hand-held drilling equipment with chucks rated for straight-shank bits up to 23/32 inches diameter.

Installation Notes

Installation and use of this drill bit should be performed by machinists or qualified trade professionals familiar with cutting tool selection and machine operation. Secure the shank fully in the chuck or collet before operation and confirm the tool is concentric to minimize runout. When drilling stainless steel or tough alloys, use appropriate cutting fluid or coolant to manage heat buildup and extend tool life. Inspect the cutting edges before each use and retire the bit if chipping or excessive wear is observed.