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TJ-PS3-250 reversible insert jaws
TJ-PS3-250 reversible insert jaws 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.
Description
Reversible top jaws Ø 250 mm for PS-type 3-jaw chucks. Available in the Krollit catalog since 2007 as an official Bernardo distributor.
Logistics
Original spare parts available with 3–5 working days shipping. Customer support in Italian available.
Technical specifications
Technical specifications
Chuck size |
250 mm |
M |
27 mm |
h |
39.7 mm |
G |
19.04 mm |
L |
14.5 mm |
J |
14 mm |
K |
20 mm |
d |
12.71 mm |
E |
4 mm |
F |
3.2 mm |
R |
22 mm |
N |
13.5 mm |
C |
53 mm |
B |
32.5 mm |
A |
95 mm |
O |
29 mm |
P |
64 mm |
Warranty
Warranty terms and support procedures are available on the dedicated Krollit page.
View Krollit warranty termsFAQ / Frequently asked questions
Frequently Asked Questions
Reversible TJ top jaws Ø 250 mm — do they combine internal and external gripping in a single set?
Yes — this is the main feature of reversible TJ top jaws. The top inserts can be mounted in two opposite orientations on the same base body: "normal" orientation for internal gripping (clamping from inside the bore or recess), "reversed" orientation for external gripping (clamping around the external diameter of the workpiece). A single set replaces two separate sets of jaws — a concrete advantage for those who frequently work with both configurations.
How are the inserts reversed in practice — how long does it take?
To reverse: 1) loosen the insert fixing screws with the supplied wrench, 2) remove each insert, 3) reassemble it in the opposite position, 4) retighten the screws. This operation takes 2–3 minutes for a complete set of 3 or 4 jaws. The inserts have a notch or visual reference for correct orientation — it is practically impossible to mount them in the wrong position if the reference is followed.
The PS3 base body — compatible with which type of chuck?
The PS3 base body is compatible with 3-jaw chucks of PS type (front mounting with 3 screws). Please check the mounting type of your chuck before purchasing — the mounting is not interchangeable between PS3, PS4, and DK. Customer support in Italian available.
Delivery times?
Original spare parts available with 3–5 working days shipping. Customer support in Italian available.
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