Fein HSS-Nova 25 Annular Cutter 27 mm Weldon 19 Shank 63133270051

On a busy steel fabrication floor, a technician mounts the Fein HSS-Nova 25 annular cutter into a magnetic core drilling machine and punches a clean 27 mm hole through a 20 mm steel beam in seconds, leaving a smooth bore and a solid slug. This cutter is built for professionals who demand speed and precision in structural steel, shipbuilding, and heavy equipment maintenance.

Key specifications

• Cutting diameter: 27 mm
• Cutting depth: 25 mm
• Material: High-speed steel (HSS)
• Shank type: Weldon 19 (3/4 inch)
• Series: HSS-Nova 25
• Overall length: 48 mm
• Number of cutting edges: multi-edge
• Surface treatment: uncoated
• Packaging quantity: 1 piece

Why choose it

The HSS-Nova 25 series delivers reliable performance in steel and non-ferrous metals. Its multi-edge design ensures efficient chip evacuation and reduced cutting forces, while the Weldon 19 shank provides a secure fit on magnetic core drilling machines. The uncoated HSS construction offers a good balance of toughness and wear resistance for general-purpose core drilling.

Ideal use cases

• Core drilling in steel plates, beams, and pipes up to 25 mm thick
• Creating holes for bolts, conduits, and cable pass-throughs
• On-site fabrication and repair work with magnetic drills
• Drilling non-ferrous metals such as aluminum and brass

Good to know

This annular cutter is compatible with Fein magnetic core drills (e.g., KBM series) and other machines accepting a Weldon 19 shank. Always use appropriate cutting fluid and follow the machine's speed recommendations for optimal tool life. The cutter produces a slug that is ejected after drilling.