Hertel 74132382 Screw Machine Drill Bit Size 41 Cobalt

Product Description

The HERTEL 74132382 is a screw machine length drill bit designed for high-throughput drilling in metal fabrication, machining, and production environments. Built from cobalt steel and finished with a TiAlN coating, it handles harder workpiece materials and elevated cutting temperatures better than standard high-speed steel bits. The split point geometry at 135 degrees reduces walking on entry and minimizes the need for a center punch. At 1-13/16 inches overall length, the stub format provides added rigidity in short-reach drilling applications. Licensed machinists, tool and die technicians, and production floor operators are the primary users of this bit.

This drill bit is suited for drilling ferrous metals, stainless steels, and harder alloys where heat buildup and tool wear are common concerns. The screw machine length format is standard in CNC machining centers, drill presses, and manual lathes where spindle clearance is limited. The straight-cylindrical shank fits standard drill chucks without modification. It is sold individually but carries a minimum order quantity of 12 units, making it appropriate for shop stocking and production-line use rather than single-use service calls.

Key Features

• Cobalt steel construction resists heat and wear in hard-material drilling
• TiAlN coating extends tool life and reduces friction at the cutting edge
• 135-degree split point reduces thrust force and self-centers on entry
• Web-thinned parallel web geometry improves chip evacuation
• Screw machine (stub) length provides rigidity in tight-clearance setups
• Right-hand spiral flute with straight-cylindrical shank for standard chuck compatibility

Compatibility

Designed as a screw machine length replacement drill bit for production drilling applications requiring a wire gauge Size 41 (0.0960 inch) diameter with a straight-cylindrical shank.

Installation Notes

Secure the shank fully in the drill chuck and verify runout before beginning a cut. Power down and lock out the spindle drive before changing or inspecting the bit. Coolant-through is not supported on this tool, so external coolant or cutting oil should be applied at the workpiece when drilling harder alloys. Handle the cutting edges with care, as cobalt bits are harder and more brittle than standard HSS and can chip if dropped on hard surfaces.