The C25-C25 is a Cembre C-type crimp/sleeve connector

as specified on the manufacturer's product page

consisting of an FE-attachment with a suction/extraction tube with a diameter of 4

MIL‑SPEC-kompatibel (angivet i producentdokumentation)

Wiha top-bits 1/4" 8,0mm MIL4278101401 The C25-C25 is a CembreSocket wrench insert Wiha 04510 Product Overview The Wiha 04510 is a socket wrench insert (bit insert) with an overall length of 55 mm and an 8. 0 mm hex socket. The product category (socket wrench insert) can be verified directly from the manufacturer's information. The Wiha 04510 is intended for use in tools with a 1 4" (E6. 3) drive and is described by the manufacturer as suitable for secure screw retention. Material and Standards The material is