The DeWalt DCS391 is a heavy-duty 18 volt cordless Circular saw that uses the 18 Volt 3.0Ah Lithium Ion battery which delivers high performance, long life and maximum runtime. The saw has a powerful and highly efficient PM58 DeWalt fan cooled motor with replaceable brushes which delivers 3,700 per minute for fast cutting action. The ultra thin kerf 165 mm, 24 tooth carbide-tipped blade allows for efficient run time and fast, smooth cut finish at maximum 55 mm depth of cut with the intelligent trigger allowing total control over all applications. The DCS391 has an extremely durable tool design, including a cast magnesium base for repetitive, accurate cuts, keyless bevel angle and depth of cut adjustment with easy to read scale for maximum cordless versatility, spindle lock for quick and.