Strengthened guides.
Two independently controlled movements (symmetrical transverse expansion).
Same total expansion per segment.
With expansion screw key straight, standard (straight, small).
Maximum expansion: 4.0 mm / segment
Directional arrow: printed, blue yellow
4 x 1/4 turn: = 0.35 mm / segment
Indication: for combined transverse and protrusion movements with Y plates.
Material: stainless steel
