This hand edger is ideal for optical labs or professional optical shops and optometry offices. The ergonomically designed durable and corrosion proof body is injection-molded. The drip tank delivers clean coolant and therefore re-circulation of used coolant is no longer necessary. The diamond plated wheel is optimal for plastic CR-39, hi-index or polycarbonate lenses Wheel specification:... Width of 35 mm, right rought grinding of 16 mm and a left-fine grinding of 19mm Includes edge grooving Size 360 ​​(L) x 200 (W) x 288 (H) in mm corrosion-proof with discharge in the base, provides a continuous flow of fresh water that eliminateds problem of contamination. With minibisel. It includes light stone of 4 300/600.