Special inserts with cutting holes for stripped spark plug threads. They require specific installation tools which are available separately.

All wearers of glasses are familiar with the problem of eye protection while grinding, hammering, cleaning, etc. and still have a sharp and clear vision. Large face shields, bulky goggles or similar devices were the usual solutions. With Varionet Safety Pro Glasses you can avoid these cumbersome kludges because they will protect you while you work AND provide you with a clear vision. They feature unifocal optical lenses which are available in different corrections for your individual needs. The higher value of the indicated diopters are specified for near range vision. Further features are antifog and antiscratch coatings for the lenses and adjustable temples (length 140-150 mm and angle).