Round knife of sewing machine part for end cutter machines. it is also called:2631-t or 260 knife. the size of this knife is 108*10*1.2 it is made from 3 kinds of steel: 2631-t:alloy steel; 2631-t[4a]:supper alloy steel; 2631-t[5a]:high speed steel. SUPERIOR QUALITY, DURABLE USING LIFE AND SATISFACTORY SERVICE. STRICT CONTROL ON EACH STEP FROM THE RAW MATERIAL TO THE FINISHED PRODUCT, WHICH CAN GUARANTEE EXCELLENT PERFOMANCE OF OUR PRODUCTS ON YOUR EQUIPMENT. WARMLY WELCOME YOU TO VISIT OUR FACTORY TO NEGOTIATE BUSINESS AT ANY TIME AT YOUR CONVENIENCE.YOUR INQUIRY WILL BE MUCH APPRECIATED AND GET OUR IMMEDIATE ATTENTION.