Makita XPS01PTJ 18-Volt X2 LXT Lithium-Ion (36V) Brushless Cordless 6-1/2 inch Plunge Circular Saw Kit (5.0Ah) with 199140-0 39 inch Guide Rail(Sold separately) - - Amazon.com
Makita 18V X2 (36V) LXT Lithium‑Ion Brushless Cordless 9 in. Power Cutter Kit, with AFT, Electric Brake, 4 Batteries (5.0 Ah) XEC01PT1 - The Home Depot