The Bernardo HSS CDS annular cutter in tin, 14/18/22 mm, 50 mm drilling depth, 5 pieces is a professional cutting tool available from Krollit, an official Bernardo distributor since 2007.
- With Weldon shank 19 mm
- Excellent chip removal
- High-speed steel
- High wear protection
- Drilling depth 50 mm
- 2 pcs. 14 mm
Who uses the HSS CDS annular cutter in tin, 14/18/22 mm, 50 mm drilling depth, 5 pieces and for what purpose
Mechanical workshops and tool shops use the HSS CDS annular cutter in tin, 14/18/22 mm, 50 mm drilling depth, 5 pieces for cutting, drilling or sharpening operations on materials compatible with the tool's geometry.
Its place in the Bernardo range
The Bernardo HSS CDS annular cutter in tin, 14/18/22 mm, 50 mm drilling depth, 5 pieces 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 working 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 HSS CDS annular cutter in tin, 14/18/22 mm, 50 mm drilling depth, 5 pieces for?
The HSS CDS annular cutter in tin, 14/18/22 mm, 50 mm drilling depth, 5 pieces is recommended for the following professional profiles:
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Mechanical workshops and tool shops: cutting and sharpening operations on compatible materials.
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Users with compatible machines: replacement part or original tool for the indicated machine.
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Out-of-spec materials: verify machinable material and tool geometry before use.
Frequently asked questions
What is an annular cutter used for?
It creates large-diameter holes in sheet metal and metal, removing only the outer ring and leaving a central core.
Annular cutters are much more efficient than traditional drill bits for large diameters: they remove only the necessary material, reduce the drill's effort, and produce cleaner holes.
What steel is it made of?
HSS (High Speed Steel), high-speed steel for most mild steels, aluminum, and standard ferrous materials.
HSS resists temperatures up to 600 °C without losing sharpness. For hardened materials or series production, consider HSS-Co versions or those with carbide tips.
Which machine is it mounted on?
It can be mounted on magnetic drills (core drills) and milling machines with a standard Weldon or TCT shank.
Magnetic drills are the most common choice for annular cutters, due to their strong magnetic adhesion and controlled feed. Check the shank type before purchasing.
What drilling depth does it reach?
Bernardo annular cutters are available with a depth of 30 mm (short version) or 55 mm (long version, KBL/CDL).
For thicknesses up to 30 mm, the short version is optimal (more rigid). For thicknesses 30-55 mm, the long version is needed. Greater thicknesses require custom-made cutters.
How is it lubricated during machining?
Use cutting oil or cooling emulsion applied directly to the cutting point. Coolant reduces heat and extends useful life.
On hard steels or high thicknesses, lubrication is essential: without coolant, the cutter overheats, loses sharpness, and can break prematurely. Recommended cutting speed: 20-30 m/min on mild steel.
