31mm Core Drill NOVA 50 HSS 50mm Cutting Depth, Weldon Shank 19.05mm - C. & E. Fein GmbH

High-performance HSS construction combined with a secure Weldon shank (19.05 mm / 3/4") ensures long service life and reliable clamping for demanding core-drilling tasks; the 50 mm cutting depth and 31 mm diameter provide efficient material removal and consistent hole quality. Order the Kernbohrer NOVA 50 directly via Metav Werkzeuge or ask our consultants if needed

Kernbohrer NOVA 50 D.31mm Weldon FEIN — HSS annular cutter with 50 mm cutting depth

A robust NOVA 50 annular cutter engineered for efficient core drilling in metalworking and industrial workshop environments with a Weldon shank for secure toolholding

• High-performance HSS construction
• 50 mm cutting depth for deep cores
• Weldon shank 19.05 mm (3/4") for secure clamping
• Eight cutting edges for fast chip removal

Faster, more consistent core drilling for production use

The annular cutter is manufactured from HSS, which combines toughness and heat resistance to maintain cutting geometry under load. With a 31 mm diameter and a 50 mm cutting depth, this tool removes a material ring rather than grinding the entire hole, reducing spindle load and cycle time. The geometry with eight cutting edges promotes rapid chip formation and evacuation, which translates into shorter machining cycles and fewer tool changes — a tangible efficiency gain for repetitive production tasks.

Secure clamping and stability during heavy cuts

A key benefit is the Weldon shank (19.05 mm / 3/4"), designed for positive clamping in Weldon-style chucks and holders; this ensures axial and torsional stability even under high torque. The shank style avoids slippage that can occur with smooth-shanked tools, so setups remain reliable across long runs. The combination of a robust shank and a tool body made from HSS contributes to an overall high service life, reducing unscheduled downtime and supporting continuous workshop throughput.

Integration into workshop workflows with minimal adaptation

The cutter’s metric dimensions and standard Weldon interface make it straightforward to fit into existing toolholders and magnetic drills that accept Weldon shanks. Because the annular cutter produces a solid core rather than turning the whole hole into chips, less effort is required for material removal and cleaning between operations. This technology therefore fits well into setup-driven environments where predictable cycle times and repeatability are priorities.

Practical handling, maintenance and compatibility

Maintenance focuses on keeping the cutting edges sharp and the Weldon flats free from burrs to preserve clamping security. The tool’s overall length of 86 mm provides sufficient reach for common applications while the Weldon shank simplifies tool changes. Where reconditioning is required after extensive use, the cutter’s straightforward geometry allows professional resharpening, preserving the original cutting profile and extending usable life. This practical life-cycle approach supports sustainable workshop operations.

For purchasing advice, availability checks or technical clarification about the NOVA 50 annular cutter, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss fitment and delivery options

Technical data

• Article number: 4149702669NW
• Product type: Annular cutter (core drill)
• Brand: C. & E. Fein GmbH
• Material: HSS

Facts

• Diameter: 31 mm
• Cutting depth: 50 mm
• Overall length: 86 mm
• Shank: Weldon 19.05 mm (3/4")
• Cutting edges: 8
• Packaging unit: 1

Special features

• Weldon shank 19.05 mm (3/4")
• High service life
• Metric dimensions
• HSS construction

FAQ

What workpiece materials is this annular cutter suitable for?
The NOVA 50 annular cutter, made from HSS, is designed for general metalworking core-drilling tasks; material-specific parameters depend on machine power and cutting conditions rather than the SKU alone (4149702669NW).

Which drill holders are compatible with the Weldon shank?
The Weldon shank (19.05 mm / 3/4") is compatible with standard Weldon-style chucks and holders; the secure flats allow positive clamping for the NOVA 50 and similar annular cutters.

Can the cutter be resharpened to extend service life?
Yes, the HSS geometry of the NOVA 50 is suitable for professional resharpening, which helps preserve cutting performance and extend usable life under regular maintenance.

How does an annular cutter compare to a twist drill for large holes?
An annular cutter removes only a material ring, producing a core, which reduces spindle load and cycle time compared with a twist drill of the same diameter; the NOVA 50’s eight cutting edges and 50 mm cutting depth support faster hole production and cleaner cores.

What is included in the delivery?
Delivery comprises a single annular cutter as specified by the packaging unit (1) for article number 4149702669NW

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com