Fine teeth, no spring, lap joint.Recommened for Large hands.Made in Germany Max Recommended Wire Thickness (*See Notes Above): Stainless and Titanium (SS/TI): 14gCopper (CU): 12gBronze and Brass (BZ/BJR): 14gAluminum (anodized AA and bright AB): 12g Minimum Recommended Size (*See Notes Above): 18g