Ryobi 690861001 Carbide Cutter Blade. This cutter blade is used on planer. Fits Craftsman model 315.173700.It is a Ryobi and Rigid part. 6-Inch long, 3-Inch wide, and 3-Inch high. Package weight of this item is 3-Pound. As one of the world's largest and most innovative power tool manufacturers, Ryobi specializes in making pro-featured power tools truly affordable. That's why Ryobi is the brand of choice for millions of homeowners, woodworkers, hobbyists, craftspeople, and value-conscious contractors.