8" high carbon specially hardened tool steel scissors for composites and tougher materials: high leverage - machined pivot screw, modified grinding and setting, and xylan low friction coating for added protection. Certainly the toughest scissors we've seen. Made in Sheffield by William Whiteley & Sons, scissor makers since 1760, or for at least 11 generations. With over 250 standard patterns covering all uses from general household to formula one composites, they are exceptionally committed to the art of scissor manufacture, and rightly proud to maintain a tradition for quality stretching back 250 years.