De La Rosa Pliers With Grooves Product Details: Da La Rosa Pliers With Grooves Without Spring Precision matched concave and convex tips for smooth contouring of light wire loops. Contours and forms arches without torquing with additional grooves measuring .016″ (.41mm), .018″ (.46mm) and .022″ (.56mm) respectively. Cab be used on wires up to .021 x .025″ (.55mm x .64mm). Handcrafted by the finest grade surgical stainless steel. Corrosion resistance and completely sterilisable.