The Bosch CSW41 7-1/4 In. Worm Drive Construction Saw provides power and versatility – with a large gearing ratio in a compact size. It has sturdy magnesium housing and a die-cast magnesium footplate for true strength and a lifetime of reliable use, as well as a sturdy, rigid motor housing. Only a 13.2 Lbs. saw, it has a fast 15-amp motor that can execute fast cuts with a no-load rpm rating of 5,300. The worm drive design means a left-side blade placement, providing a clear line of sight for right-handed users.