This promotion is not valid on discounted products or on bundled offers.
Chuck Jaws DOJ-DK11-250
Chuck Jaws DOJ-DK11-250 is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
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 DOJ-DK11-250
Description
DOJ Ø 250 mm jaws for DK11 chucks — external gripping jaws. Krollit has been an official Bernardo distributor in Italy since 2007.
Logistics
Original spare parts available with 3-5 business days shipping. Customer support available in Italian.
Technical specifications
technical specifications
Chuck size |
250 mm |
A |
105 mm |
B |
27 mm |
C |
69 mm |
d |
12 mm |
E |
10 mm |
F |
12 mm |
h |
70 mm |
G |
34 mm |
Warranty
Warranty terms and support procedures are available on the dedicated Krollit page.
View Krollit warranty termsFAQ / Frequently asked questions
Frequently Asked Questions
DOJ Ø 250 mm jaws — what does DOJ mean and how do they differ from DIJ jaws?
DOJ (Direct Outer Jaw) refers to external gripping jaws: the teeth grip from the outside of the workpiece's diameter, clamping inwards. These are the standard jaws for clamping bars, shafts, cylinders, and compact-shaped workpieces. DIJ jaws do the opposite — internal gripping on hollow workpieces. The same machine can use both DIJ and DOJ depending on the workpiece, as long as the chuck size is compatible.
DK11 series — compatibility with my chuck?
DK11 connection (11 DIN 6350 bolts). Verify your chuck's connection type before purchase — DK11 and DK12 are not interchangeable. The Ø 250 mm diameter must match the chuck size. Customer support available in Italian.
Hard DOJ jaws vs soft jaws — when to choose one over the other?
Hard DOJ jaws (hardened) are for general use on raw steel, cast iron, and aluminum — they grip firmly without deforming but leave marks on finished workpieces. Soft jaws (mild steel) do not leave marks on already machined workpieces and are turned in situ for maximum concentricity. For finishing operations on machined workpieces: soft jaws. For roughing and production on raw workpieces: hard jaws.
Delivery times?
Original spare parts available with 3-5 business days shipping. Customer support available in Italian.
-
Product safety
-
Reviews
Product safety
