Craftsman 16121.00 Planer Blade. This blade is used on planers. Fits Craftsman model 351.217130. 3-Inch long, 3-Inch wide, and 1-Inch high. Package weight of this item is 1-Pound. Craftsman - America"s Most Trusted Tool Brand - is characterized by durability, innovation and consistency. From hand tools to power tools and from lawn & garden equipment to tool chests and other storage solutions, Craftsman products are built to last and designed to give you the confidence to complete any project no matter the size.