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SKT: Segen Sockets

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Segen sockets are available in three sizes, each designed to work with a standard Segen knob size including the PD250 micro knobs, the 375 mini knobs and the 438 knobs. These sockets mate with standard 3/8” socket ratchet drive so no special tooling is required. The ratchet is not included in this product.

The following knobs do not require a socket: PD375SXP, PD438SXP, PD438CB, PD438T

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Additional information

Installation Guidelines – PD250Installation Guidelines – PD375

Installation Guidelines – PD438Download Brochure


  1. Tooling Technology has no way of testing every possible scenario in which our products could be used. If you are unsure about choosing the right product for your proposed application, please contact us.
  2. The published load ratings for each product are reliant on mating the knobs and cylinders with fasteners that are compatible with those respective loads.
Socket Size

PD250SKT, PD375SKT, PD438SKT, Complete Set