Skil SPT77WM-RT 7-1/4 in. Magnesium Worm Drive Circular Saw (Certified Refurbished) This Certified Refurbished product has been tested and certified to work and look like new, with minimal to no signs of wear, by a specialized third-party seller approved by Amazon. The product is backed by a minimum 90-day warranty, and may arrive in a generic brown or white box. Accessories may be generic and not directly from the manufacturer. Dual-Field motor is especially designed for saws, increasing cooling and extending tool life. Durable die-cast magnesium foot has large easy-to-read bevel and depth-of-cut scales. 53 degree bevel allows for a wide variety of cuts. Multi-function wrench for a variety of uses on the jobsite and conveniently stores in the foot.