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Chuck Jaws DOJ-DK12-80
Chuck Jaws DOJ-DK12-80 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-DK12-80
Description
DOJ jaws Ø 80 mm for DK12 chucks — external grip jaws. Available from Krollit, official Bernardo distributor since 2007.
Logistics
Original spare parts available with 3-5 business days shipping. Customer support in Italian available.
Technical specifications
technical specifications
Chuck size |
80 mm |
A |
32 mm |
B |
12 mm |
C |
33 mm |
d |
6 mm |
E |
7 mm |
F |
6.5 mm |
h |
22.5 mm |
G |
11 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 80 mm — what does DOJ mean and how do they differ from DIJ jaws?
DOJ (Direct Outer Jaw) indicates jaws for external gripping: the teeth grip from the outside diameter of the workpiece, 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, provided the chuck size is compatible.
DK12 series — compatibility with my chuck?
DK12 attachment (12 DIN 6350 bolts). Verify your chuck's attachment type before purchasing — DK11 and DK12 are not interchangeable. The Ø 80 mm diameter must match the chuck size. Customer support in Italian available.
Hard DOJ jaws vs. soft jaws — when to choose one over the other?
Hard DOJ jaws (hardened) are for general use on steel, cast iron, and raw aluminum — they grip strongly 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 already 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 in Italian available.
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Product safety
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