Fein HSS-Nova 50 kierrepora 19 mm Weldon-varsi 63133189052

When drilling large-diameter holes in steel plates or profiles, conventional twist drills often struggle with high torque, poor chip evacuation, and slow progress. The Fein HSS-Nova 50 annular cutter solves this by cutting only the periphery of the hole, leaving a solid core that is ejected automatically. This reduces cutting forces, increases speed, and extends tool life, making it ideal for metalworking professionals who need precise, burr-free holes in structural steel, stainless steel, and non-ferrous metals.

Who is it for

This cutter is built for fabricators, maintenance technicians, and construction crews who use magnetic core drilling machines. It suits anyone who regularly drills holes from 12 mm to 50 mm in steel beams, plates, or pipes and demands clean, round holes without reaming or secondary finishing. Whether you are installing railings, structural anchors, or hydraulic lines, the HSS-Nova 50 delivers consistent performance in demanding on-site conditions.

Main features

• High-speed steel (HSS) body with optimized tooth geometry for fast cutting and long life.
• 19 mm cutting diameter and 50 mm cutting depth for common structural and mechanical applications.
• Weldon shank (19 mm / 3/4") for secure, wobble-free mounting in magnetic drills.
• Internal cooling channels ensure efficient coolant delivery to the cutting edge, reducing heat and wear.
• Bright, uncoated finish for sharp cutting edges and easy inspection.
• Optimized chip removal design prevents clogging and allows continuous drilling.
• High concentricity ensures precise hole diameter and roundness.

Specifications

• Product type: Annular cutter
• Series: HSS-Nova 50
• Material: High-speed steel (HSS)
• Cutting diameter: 19 mm
• Cutting depth: 50 mm
• Shank type: Weldon 19 mm (3/4")
• Application material: Steel, stainless steel, non-ferrous metals
• Recommended tensile strength: Up to 900 N/mm²
• Tool compatibility: Magnetic core drilling machines
• Cooling system: Internal cooling (recommended)
• Number of pieces: 1
• Drilling method: Core drilling
• Finish: Bright / uncoated
• Chip removal: Optimized for fast chip removal
• Precision: High concentricity

Tips

Always use cutting fluid or a suitable cooling lubricant when drilling steel to maximize tool life and hole quality. Ensure the magnetic drill is securely attached to the workpiece and the cutter is properly seated in the arbor. Apply steady, moderate feed pressure; excessive force can damage the cutter or cause the core to jam. After each hole, clear chips from the cutter and workpiece to maintain cutting performance. For stainless steel, reduce speed and increase feed slightly to prevent work hardening.