Expander Medium Max Exp 4.0 mm - PK/10

• A medium double side expander.
• Width: 10.0 mm.
• Max.Exp: 4.0 mm.
• Full Turn: 0.8 mm.
• 1/4 Turn: 0.2 mm.
• Pins & threads are manufactured from medically biocompatible stainless steel.
• Housing made from stainless steel.
• Screw threads have a low tolerance of .01mm and are very secure to ensure stability.
• All screws come with one activation key.

     Used for:

1. Transverse expansion in the upper and lower arches.
2. Four holes in the expander body for maximum retention in acrylic. Yellow directional arrow.