Traction Screw acc. Heller
Traction and compression screws. 10/pk
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Traction Screw acc. Heller
Traction and compression screws. 10/pk
The combined traction and compression screw according to Heller is used for sagittal movement. The screw measures 22mm long, 3mm deep and 6.4mm wide. A full 360 degree turn of the key generates 0.35mm expansion with a maximum 4.5mm expansion achievable