Fein HSS-Nova 25 kernboor 16 mm Weldon-schacht 19 mm 63133159051

For metalworking professionals tackling steel plates, beams, or pipes on a magnetic core drilling machine, the Fein HSS-Nova 25 annular cutter delivers clean, precise 16 mm holes with a 25 mm cutting depth. Its high-speed steel body and optimized chip removal keep the cut efficient, while the 19 mm Weldon shank ensures a secure fit on compatible machines.

Key specifications

• Cutting diameter: 16 mm
• Cutting depth: 25 mm
• Material: High-speed steel (HSS)
• Shank type: Weldon, 19 mm (3/4 inch)
• Series: HSS-Nova 25
• Application: Steel and non-ferrous metals
• Number of pieces: 1
• Manufacturing process: Precision ground, bright finish
• Cooling: Suitable for internal cooling
• Drilling method: Annular drilling (produces a slug)

Why choose it

Fein's HSS-Nova 25 line is built for general-purpose metal drilling where accuracy and tool life matter. The precision-ground flutes and bright finish reduce friction, while the annular design removes only a ring of material, saving time and energy compared to twist drills. The 19 mm Weldon shank is the industry standard for magnetic drills, so it drops right into your existing setup.

Ideal use cases

• Drilling holes in structural steel on construction sites
• Creating openings for cables or pipes in metal enclosures
• Fabrication work in workshops and maintenance departments
• On-site repairs where a magnetic drill is available

Good to know

This cutter is uncoated, which is typical for HSS annular cutters and allows for easy resharpening. Use a suitable cutting fluid or internal coolant for best results, and ensure your magnetic drill has a 19 mm Weldon arbor. The slug is ejected automatically after each cut, so keep the work area clear.