The Bernardo combined taper shank drill chuck CM 3 / 32 mm is a machine tool accessory for professional use, available on Krollit, an official Bernardo distributor since 2007.
- Holder: Chuck diameter
- MK 3: 32 mm
Who uses the combined taper shank drill chuck CM 3 / 32 mm and for what purpose
Users who own a compatible machine install the combined taper shank drill chuck CM 3 / 32 mm as an original accessory to extend functionalities or replace worn components.
Its place in the Bernardo range
The Bernardo combined taper shank drill chuck CM 3 / 32 mm is part of Bernardo's range of machine tool accessories, 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 within 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 combined taper shank drill chuck CM 3 / 32 mm for
The combined taper shank drill chuck CM 3 / 32 mm is recommended for the following professional profiles:
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Users who own the compatible machine: original accessory to extend the functionalities of the specified machine.
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Workshops with specific setup needs: component for special processing or increased precision.
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Compatibility with machines of other brands or models: check machine model and specifications before purchase.
Frequently Asked Questions
What is a combined taper shank drill chuck Morse taper 3 (CM 3)?
It is a quick-change chuck that combines the drill holder and the coupling taper in a single body, mountable directly into the machine's spindle nose.
The "combined taper shank" system eliminates the need for a separate tang, reducing the number of components and the risk of misalignment. Suitable for serial production and quick drill bit changes.
Which machine is it mounted on?
It mounts directly onto the spindle nose with a Morse taper 3 (CM 3) attachment.
Morse taper 2 (CM 2) is typical for bench drills, CM 3 for professional drills, CM 4 for industrial drills. ISO 30 and ISO 40 are attachments for precision milling machines.
What is its drilling capacity? 32 mm
Clamping capacity up to Ø 32 mm on the drill shank.
The capacity indicates the maximum diameter of the drill shank that the chuck can accommodate. For larger diameter holes, core drills or specific milling cutters are needed.
Is it key or keyless?
Combined taper shank chucks are tightened with the supplied chuck key, ensuring a secure grip for intensive use.
Keyed chucks are more secure than keyless chucks for operations with high torque or hard materials. The key should be kept near the machine and never left in the chuck during operation.
How is it maintained?
Regular cleaning of the jaws after use, removal of chips and coolant, lubrication with specific chuck oil every 50-100 hours of use.
A jaw that moves with difficulty indicates an accumulation of chips or oxidation. Disassemble the chuck, clean the sliding surfaces, and apply light oil. Replace the chuck if concentricity exceeds 0.1 mm.
