The DCS571 brushless 4-1/2 In. cordless circular saw features a bevel gear design allowing users to cut 2x material at 90 degrees and 1x material at 45 degrees. With convenient on-board blade key storage， users can change blades with minimal hassle. Electronic blade brake stops blade quickly for safety and productivity. 1-1/2 In. finger trigger allows users to choke-up on tool if necessary for their application. Elongated handle optimizes reach for rip cutting OSB (Oriented Strand Board) and plywood. On-board dust port for dust control. Hang hook for increased convenience. Removable auxiliary handle for increased control. Includes wood cutting blade， blade change key， dust port adapter， rip fence. Tool Only - battery and charger not included.