The Bernardo MK 3 Circular Cutter is a professional cutting tool available from Krollit, an official Bernardo distributor since 2007.
- Support: MK 3
- Diameter: 30 - 300 mm
Who uses the MK 3 Circular Cutter and for what
Machine shops and tool shops use the MK 3 Circular Cutter for cutting, drilling, or sharpening operations on materials compatible with the tool's geometry.
Its place in the Bernardo range
The Bernardo MK 3 Circular Cutter is part of the Bernardo cutting tool range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Shipping within 3-5 business days from Krollit warehouse for spare parts and accessories. Italian customer support available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the MK 3 Circular Cutter for
The MK 3 circular cutter is recommended for the following professional profiles:
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Machine shops and tool shops: cutting and sharpening operations on compatible materials.
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Users with compatible machines: replacement or original tool for the specified machine.
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Out-of-spec materials: check machinable material and tool geometry before use.
Frequently Asked Questions
What is this circular cutter used for?
It is used for circular cutting on metal or similar materials for the operations indicated in the product title.
The choice of the specific model depends on the attachment (CM 2, MK 3) compatible with machines with the corresponding Morse taper.
What steel are they made of?
Bernardo lathe tools are made of HSS (High Speed Steel) or Carbon Steel depending on the model indicated in the title.
HSS withstands temperatures up to 600 °C and is suitable for most woods and materials. Carbon Steel is cheaper but has a shorter lifespan, suitable for hobby use.
How many pieces does the set contain?
The number of pieces is indicated in the title (e.g., "5 pieces", "6 pieces", "8 pieces"). Larger sets cover a wider range of machinable profiles.
Starter sets (4-5 pieces) for beginners, professional sets (6-8 pieces) for complete machining with gouges, flat chisels, scrapers, and parting blades.
Do they need to be sharpened periodically?
Yes, lathe tools should be sharpened regularly to maintain a clean cut. The frequency depends on the intensity of use and the material being worked.
For HSS blades, sharpening is recommended every 8-15 hours of actual work. Krollit provides dedicated Bernardo sharpeners (BSG, DG series) to maintain the correct cutting edge angle.
How should they be stored correctly?
Store in a dedicated drawer or mat with individual protection, lightly oiled to prevent oxidation. Avoid contact between cutting edges.
Surface oxidation reduces cutting quality and accelerates wear. Clean after each use and apply a protective film (machine oil or WD-40). Store in a dry place, away from heat sources.
