The Makita 4-5/8” Aluminum Groove Cutter (CA5000X) is engineered for smooth and convenient cutting, with features for precision and ease of use. Get the right accessories for use with this cutting solution, including the Skirt Complete (model 143939-5). The 143939-5 is a replacement skirt for the CA5000X. It installs quickly and easily, with durable construction and high quality materials for long service life. (Note: CA5000X sold separately.)