Our needle holders with tungsten carbide inserts differ from the normal needle holder models by the soldered hard metal plates in the jaw part. This gives you a 30 times longer service life than the standard models made of surgical stainless steel. The hard metal grit prevents the needle from twisting or yielding in the mouth. All needle holders with carbide are characterized by the gold-plated branches or rings. The hard metal plates have different grain sizes: The 0.5 mm grain size is suitable for> 3/0 suture material and larger. The 0.4mm fine grain fits the sutures between 3/0 to 6/0. The 0.2mm micro grain for sutures between 6/0 to 7/0. A smooth or diamond-coated mouth is suitable for sutures between 7/0 and 10/0.