Description The SKIL SPT77WML-01 worm drive Skilsaw latest and lightest Worm Drive continues the long tradition of SKIL quality, rugged durability and consistently exceptional cutting performance. Weighing in at just 11.5 lbs., it’s 4 lbs. less than its predecessor and the lightest Worm Drive Skilsaw on the market. The SKIL SPT77WML-01 rugged magnesium housing stays strong but keeps the motor cooler, giving you powerful performance job after job. Legendary SKIL Worm Drive technology meets our best-in-class Dual-Field™ motor, invented specifically for saws. This model comes with a SKIL blade.