50mm Core Drill Bit HSS With 19.05mm Weldon Shank, 50mm Cut Depth - C. & E. Fein GmbH

Take advantage of the robust HSS construction, the secure Weldon shank (19.05 mm / 3/4") and the 50 mm cutting depth to maintain steady production of clean, accurate bores; order or request advice via Metav Werkzeuge for availability and technical guidance.

NOVA 50 annular cutter – HSS, 20 mm diameter, Weldon shank (FEIN)

The NOVA 50 annular cutter is a high-performance core drilling tool for metalworking, designed for efficient holemaking in production and workshop environments with a 3/4" Weldon shank for secure mounting.

• HSS construction for long tool life
• Weldon shank 19.05 mm (3/4") for firm grip
• 50 mm cutting depth for deep boreholes
• Five cutting edges for efficient removal

Faster, more efficient boremaking for metalwork

The annular cutter design delivers fast material removal by cutting only the periphery of the hole rather than the full core, which reduces power demand and cycle times compared with twist drills. Manufactured in HSS, the tool combines heat resistance with toughness for consistent performance. With a 20 mm diameter and 50 mm cutting depth, the cutter is suitable where a clean, controlled through-hole is required; the presence of five cutting edges promotes balanced cutting action and helps to reduce vibration. This efficiency translates directly into shorter machining cycles and predictable output in repetitive operations.

Secure mounting and compatibility with magnetic drills

A Weldon shank (19.05 mm / 3/4") provides a robust mechanical interface for Weldon-style holders and magnetic drilling machines, preventing slippage under load. The standard shank flats enable quick clamping with a set screw and ensure concentricity when used with a properly maintained holder. The overall length of 86 mm combined with the 50 mm effective cutting depth gives a compact profile while still enabling deep bore applications; the shank format also simplifies tool changes during production, reducing downtime and improving workflow continuity.

Durable design and workshop serviceability

Constructed from HSS, the cutter is built for sustained use in industrial and trade environments where tool life and repeatability matter. The solid substrate supports periodic regrinding where appropriate, extending service life when straight flutes remain intact. For maximised durability, common practice includes controlled feed, appropriate coolant or lubricant, and stable clamping. Supplied as a single unit with metric dimensions, the tool meets workshop standards for compatibility and repeatable performance, supporting reliable planning of production runs and maintenance schedules.

Request a technical check and stock confirmation from Metav Werkzeuge to ensure the NOVA 50 annular cutter with Weldon shank meets the specific machine and application requirements in the workshop.

Technical data

• Article number: 4149702658NW
• Type: NOVA 50
• Product: Annular cutter

Facts

• Diameter: 20 mm
• Cutting depth: 50 mm
• Overall length: 86 mm
• Shank diameter: 19.05 mm (3/4")
• Cutting edges: 5

Special features

• Material: HSS
• Weldon shank 19.05 mm (3/4")
• Metric dimensions
• High tool life

FAQ

How deep can the cutter drill?
The NOVA 50 annular cutter has a cutting depth of 50 mm, allowing for deep, clean boreholes within that axial range.

Will the shank fit a magnetic drill?
The Weldon shank (19.05 mm / 3/4") is designed for Weldon-style holders commonly used on magnetic drilling systems and provides secure clamping for heavy cutting.

Can the HSS cutter be resharpened?
HSS is suitable for professional resharpening; the NOVA 50 can be serviced by a qualified tool workshop to restore cutting geometry and prolong service life.

How does an annular cutter differ from a twist drill?
An annular cutter removes a ring of material and leaves a solid slug, which reduces cutting volume and power draw compared with a twist drill of the same diameter, resulting in faster, cleaner holes.

What is the SKU and manufacturer of this tool?
Article number 4149702658NW identifies the NOVA 50 annular cutter by C. & E. Fein GmbH with the specifications listed above.

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