K&D manufactured the the 43-329 Incabloc set specifically to stake Incabloc “Rollers”. The designers of the Incabloc system intended to keep pressure off of the balance pivots and transfer shock to the Incabloc mechanism.
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| From 1951 Lindstrom Catalog |
K&D invented their Incabloc staking set to reset the rollers and take the stress off of the pivots of the balance staff after a severe shock. After such an event, jewels tend to move sideways or upwards and the shoulder of the balance staff comes into contact with the setting and stopping it.
If the Incabloc rollers suffer damage, you can remove the roller with the 329 punches while holding the roller in place with the designated stumps.
K&D designed this set for bracelet style watches. Typically, a watchmaker would buy the 329 in addition to to other accessories not included with the 18R Deluxe staking set.