Bernardo HSSCO5 CDL core drill set, with nACO coating, 14 - 24 mm, drilling depth 50 mm is a professional cutting tool available from Krollit, official Bernardo distributor since 2007.
- With Weldon 19 mm shank
- Excellent chip removal
- High-speed steel
- Coated with hard material
- High wear protection
- High hardness and adhesion
Who uses the HSSCO5 CDL core drill set, with nACO coating, 14 - 24 mm, drilling depth 50 mm and for what
Mechanical workshops and tool laboratories use the HSSCO5 CDL core drill set, with nACO coating, 14 - 24 mm, drilling depth 50 mm for cutting, drilling or sharpening operations on materials compatible with the tool's geometry.
Its place in the Bernardo range
Bernardo HSSCO5 CDL core drill set, with nACO coating, 14 - 24 mm, drilling depth 50 mm is part of the Bernardo cutting tool range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performances: 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 3-5 business days from Krollit warehouse for spare parts and accessories. Customer support in Italian available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the HSSCO5 CDL core drill set, with nACO coating, 14 - 24 mm, drilling depth 50 mm for
The hssco5 cdl core drill set, with naco coating, 14 - 24 mm, drilling depth 50 mm is recommended for the following professional profiles:
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Mechanical workshops and tool laboratories: cutting and sharpening operations on compatible materials.
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Users with compatible machine: replacement part or original tool for the indicated machine.
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Out of specification materials: check workable material and tool geometry before use.
Frequently asked questions
What is this core drill set used for?
It is used with magnetic drills for large diameter holes on steel for the operations indicated in the product title.
The choice of specific model depends on material (HSS, HM, HSSCo5), coating (tin CDL/CDS, NACO), diameter range (14-22 mm or 14-24 mm) and drilling depth (35 mm). compatible with magnetic drills with Weldon or TCT shank.
What steel are they made of?
Bernardo lathe blades are made of HSS (High Speed Steel) or Carbon Steel depending on the model indicated in the title.
HSS resists temperatures up to 600 °C and is suitable for most woods and materials. Carbon Steel is cheaper but with 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 workable profiles.
Starter sets (4-5 pieces) for beginners, professional sets (6-8 pieces) for complete work with gouges, flat chisels, scrapers and parting blades.
Do they need to be sharpened periodically?
Yes, lathe blades must 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 dry, away from heat sources.
