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Chuck Jaws DIJ-DK12-400
Chuck Jaws DIJ-DK12-400 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
At Krollit, we guarantee a safe and reliable shipping process. Orders are handled with the utmost care and traceability until delivery.
For international shipments, please send your request via the dedicated contact form.
Upon delivery, always sign the delivery note with the words “subject to inspection” to allow for proper handling of any irregularities or discrepancies in the product.
Our goal is to ensure you receive prompt service and a worry-free shopping experience.
Chuck Jaws DIJ-DK12-400
Description
DIJ Ø 400 mm Jaws for DK12 chucks — internal gripping jaws. Krollit has been an official Bernardo distributor in Italy since 2007.
Logistics
Original spare parts available with 3–5 working days shipping. Customer support available in Italian.
Technical specifications
technical specifications
Chuck size |
400 mm |
A |
138 mm |
B |
36 mm |
C |
91 mm |
d |
13.5 mm |
E |
13 mm |
F |
18 mm |
K |
93.5 mm |
J |
41.5 mm |
Warranty
Warranty terms and support procedures are available on the dedicated Krollit page.
View Krollit warranty termsFAQ / Frequently asked questions
Frequently Asked Questions
DIJ Ø 400 mm Jaws — what does DIJ mean and for what type of clamping?
DIJ (Direct Inner Jaw) indicates jaws for internal gripping: the teeth bite from inside a hole or cavity, expanding outwards. Used for clamping hollow workpieces (rings, flanges, hollow shafts) by blocking them from inside the hole. The jaw geometry is optimized for internal gripping — they are not used for traditional external gripping. The Ø 400 mm size indicates the compatible chuck diameter, not the diameter of the hole that can be clamped.
DK12 series — compatibility with my chuck?
DK12 mount (12 DIN 6350 bolts). Check the mount type of your chuck before purchasing — DK11 and DK12 are not interchangeable. The Ø 400 mm diameter must match the chuck size. Customer support available in Italian.
What is the range of internal diameters that can be clamped with these jaws?
The clamping range depends on the jaw travel in the chuck and the jaw geometry. As a reference for a Ø 400 mm chuck: the minimum clampable hole is approximately 15–20% of the chuck diameter; the maximum is approximately 60–70%. For applications outside this range, contact Krollit. Customer support available in Italian.
Delivery times?
Original spare parts available with 3–5 working days shipping. Customer support available in Italian.
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