Abstract: The focus of the project was to design a cutter blade for shredding machine such that it would be economical and effective in manufacturing also same time maintaining its efficiency. For serving this purpose we made some alteration in basic design for 6 teeth cutter blade with square shaped hole. The 6 teeth cutter blade is usually preferred to have a cutter blade angle in the range of 10°-20° for better efficiency. To achieve this arithmetically progressive angles, the cutter blades (with square shaped hole) are needed to be manufactured in different variants.