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Chuck Jaws DOJ-DK12-500
Chuck Jaws DOJ-DK12-500 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 DOJ-DK12-500
Description
DOJ jaws Ø 500 mm for DK12 chucks — external gripping jaws. Krollit has been an official Bernardo distributor in Italy since 2007.
Logistics
Original spare parts available with 3–5 business day shipping. Customer support available in Italian.
Technical specifications
technical specifications
Chuck size |
500 mm |
A |
180 mm |
B |
46 mm |
C |
100 mm |
d |
17 mm |
E |
18 mm |
F |
24 mm |
h |
119.5 mm |
G |
50 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 Jaws Ø 500 mm — what does DOJ mean and how do they differ from DIJ jaws?
DOJ (Direct Outer Jaw) indicates jaws for external gripping: the teeth bite from the outside of the workpiece diameter, clamping inwards. These are standard jaws for clamping bars, shafts, cylinders, and compactly 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.
DK12 Series — compatibility with my chuck?
DK12 attachment (12 DIN 6350 bolts). Check the attachment type of your chuck before purchase — DK11 and DK12 are not interchangeable. The Ø 500 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 rough steel, cast iron, and aluminum — they clamp strongly without deforming but leave marks on finished workpieces. Soft jaws (mild steel) do not leave marks on pre-machined workpieces and can be turned in situ for maximum concentricity. For finishing operations on pre-machined parts: soft jaws. For roughing and production on rough workpieces: hard jaws.
Delivery times?
Original spare parts available with 3–5 business day shipping. Customer support available in Italian.
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