Tool-less blade change. Lithium-ion batteries have greater life spans than their Ni-MH or Ni-Cad counterparts giving 430% greater run time. Lithium-ion's 40% weight saving means 18 volt power can be obtained by a battery that weighs the same as a 12 volt Ni-MH battery. High comfort grips. LED job light that creates and easy to trace cutting line. Smooth and powerful cutting at the high stroke speed of 2,600spm. Includes Makpac Case with Inlay and Guide Rail Adapter - Enables saw to be used with 1.4/1.5/1.0m Guide Rails