The Bernardo combined ISO 40 / 22 mm quick-change drill chuck is a machine tool accessory for professional use available on Krollit, official Bernardo distributor since 2007.
- Holder: Chuck diameter
- ISO 40: 22 mm
Who uses the combined ISO 40 / 22 mm quick-change drill chuck and for what purpose
Users who own a compatible machine install the combined ISO 40 / 22 mm quick-change drill chuck as an original accessory to extend functionalities or replace worn components.
Its place in the Bernardo range
The Bernardo combined ISO 40 / 22 mm quick-change drill chuck 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 machine suitable 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 combined ISO 40 / 22 mm quick-change drill chuck for?
The combined ISO 40 / 22 mm quick-change drill chuck is recommended for the following professional profiles:
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Users who own a compatible machine: original accessory to extend the functionalities of the indicated machine.
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Workshops with specific setup needs: component for special machining or increased precision.
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Compatibility with machines of other brands or models: verify machine model and specifications before purchase.
Frequently Asked Questions
What is a combined ISO 40 quick-change drill chuck?
It is a quick-change chuck that combines the drill holder and the coupling cone in a single body, mountable directly on the machine's spindle nose.
The "combined quick-change" system eliminates the need for a separate shank, reducing the number of components and the risk of misalignment. Suitable for series production and quick drill bit changes.
Which machine is it mounted on?
It mounts directly on the spindle nose with an ISO 40 taper.
Morse Taper 2 (MT 2) is typical for bench drills, MT 3 for professional drills, MT 4 for industrial drills. ISO 30 and ISO 40 are tapers for precision bench milling machines.
What is its drilling capacity? 22 mm
Clamping capacity up to Ø 22 mm on the drill bit shank.
The capacity indicates the maximum diameter of the drill bit shank that the chuck can accommodate. For larger diameter holes, specific core drills or milling cutters are needed.
Is it key-tightened or keyless?
Combined quick-change chucks are tightened with the supplied crown key, ensuring secure clamping for intensive use.
Key tightening is safer than quick tightening for operations with high torque or hard materials. The key must be kept near the machine and never left in the chuck when in 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.
