NWKC HSS Taper Shank Drill Bit, 45mm Diameter, MK4 Morse Taper

The NWKC HSS Taper Shank Drill Bit is a high-performance industrial tool engineered for precision drilling in metal. Featuring a 45mm diameter and a robust MK4 Morse taper shank, this drill bit is designed to provide exceptional stability and torque transmission when used with compatible machine tool spindles. Constructed from high-speed steel, it offers the necessary hardness and heat resistance required for demanding drilling operations, ensuring consistent results and a long service life in professional workshop environments.

Advantages

This drill bit excels due to its high-speed steel composition, which maintains cutting edge integrity even under significant thermal stress. The MK4 Morse taper shank ensures a secure, self-centering fit within the machine spindle, minimizing vibration and improving hole accuracy. Its geometry is optimized for efficient chip evacuation, which prevents clogging and reduces the risk of tool breakage during deep drilling tasks. The combination of a 210mm working length and a 359mm total length provides the reach necessary for thick-walled materials while maintaining structural rigidity.

Suitable for

• Heavy-duty metal drilling in industrial settings
• Drilling operations requiring high precision and stability
• Use with drill presses and milling machines equipped with MK4 spindles
• Creating large-diameter holes in steel and cast iron

When it may not be suitable

This drill bit is not intended for use with handheld power drills, as it requires a machine tool spindle with an MK4 taper connection for safe and effective operation. It is also not optimized for drilling soft materials like wood or plastics, where specialized geometry is preferred to prevent tearing.

Key specifications

• Diameter: 45mm
• Shank type: MK4 Morse Taper
• Material: High-Speed Steel (HSS)
• Working length: 210mm
• Total length: 359mm

How to use

Before installation, ensure the machine spindle and the MK4 taper shank are clean and free of debris to guarantee a proper fit. Insert the drill bit firmly into the spindle until it is seated securely. Always use an appropriate cutting fluid or lubricant to reduce friction and heat buildup during the drilling process. Start the machine at a low speed, gradually increasing to the recommended feed rate for the material being drilled. After use, remove the bit using a drift key, clean it thoroughly, and store it in a dry place to prevent corrosion.

What to consider before purchase

• Verify that your machine tool spindle is compatible with an MK4 Morse taper
• Ensure your equipment has sufficient power and torque to drive a 45mm diameter bit
• Check that the 210mm working length is sufficient for your specific workpiece thickness

Usage recommendations: Always wear appropriate personal protective equipment, including safety glasses and gloves, when operating drilling machinery. Regularly inspect the cutting edges for signs of wear or dulling to maintain optimal performance and safety.