Hertel 74147174 Taper Length Drill Bit No 37 Cobalt

Product Description

The HERTEL 74147174 is a taper length drill bit engineered for drilling into hard and tough materials including alloy steel and stainless steel. Built from cobalt high-speed steel and finished with a TiAlN coating, this bit delivers extended tool life and heat resistance at elevated cutting speeds. It is sized to wire gauge No. 37, which corresponds to a decimal diameter of 0.1040 inches. The 135-degree split point geometry reduces walking at contact and lowers thrust requirements, making it well suited for production drilling environments where tool performance and consistency matter.

This bit is designed for machining and fabrication applications where standard HSS tooling falls short. It performs in aerospace, automotive, and general metalworking operations that involve alloy steel and stainless steel workpieces. The taper length body provides added reach compared to jobber-length bits, making it useful when drilling deeper holes or accessing recessed features. It is a practical choice for machinists, toolroom technicians, and metal fabricators working on manual or CNC drilling equipment.

Key Features

• Cobalt construction resists heat and wear when cutting hardened and abrasive metals
• TiAlN coating extends service life and reduces friction at the cutting edge
• 135-degree split point reduces thrust and prevents bit walking on entry
• Web-thinned, tapered web design improves chip evacuation in deep holes
• Right-hand spiral flute clears chips efficiently during through-hole and blind drilling
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as an OEM-style replacement or direct substitute taper length drill bit for use in standard drill chucks accepting a straight cylindrical shank, suited for alloy steel and stainless steel material applications.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or metal fabrication technicians familiar with cutting tool selection and machine setup. Secure the shank fully and concentrically in the drill chuck before operation to prevent runout. Use appropriate cutting fluid or coolant when drilling stainless steel or alloy steel to manage heat buildup at the cutting edge. Inspect the bit for chipping or wear before each use and replace when the cutting edge shows signs of degradation.