DeWalt D28605 Variable Speed Fiber Cement Siding Shear, 6.5 Amp, 800W, 5/16"The D28605 5 16" Variable Speed Fiber Cement Siding Shear is ideal for cutting 5 16" cement fiber siding. 360 degree head swivel for added cutting convenience. Reversible dual cutting edge side blades prolong cutting life and increase productivity. Powerful, 6. 5 amp, all ball bearing motor for increased power and long life when cutting 5 16" cement fiber siding Variable for increased user control Head swivels 360 for added cutting convenience