The Lindstrom 649-SA is a general purpose tweezers type 649 with serrated handles and bent, thick, beveled, strong, line serrated tips. These are the highest-quality Swiss-made tweezers. They are handcrafted to have perfect tip symmetry and balance. It has polished edges with a superior non-scratching, anti-glare satin finish. All models are available in anti-magnetic, anti-acid stainless steel (SA), and other materials as noted.