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 Hex Wrench (model 783022-2). The Hex Wrench is for performing maintenance on the CA5000X. It has a versatile L-shaped design and features durable metal construction for long service life. (Note: CA5000X sold separately.)