Rockwell RK3441K 4-1/2&rdquo; Compact Circular Saw, 5 amps, 3500 rpm with Dust Port and Accessory Kit Compact but powerful 5-amp electric motor, matching performance of full-size saws at 3,500 rpm At only 5 lbs., is 50% lighter than conventional 7-1/4 circular saws, cuts through 2x4s in a single pass Left-handed blade design provides remarkable cut-line visibility Slim, inline grip design provides great comfort, balance, and control; maneuverable for overhead cuts The saws maximum cutting depth at 90 degrees is 1-11/16 and its bevel capacity at 45 degrees is 1-1/8.Arbor Size:3/8 inches