PacTool International SS524 Cordless Fiber Cement Backerboard Shear Cuts 1/4 and 1/2 Hardiebacker underlayment Smooth, fast cuts with no airborne dust 2 powerful 14.4 volt 3.0 Ah Li-ion batteries Ergo-friendly swivel shear head for right and left-handed use 40-minute fast charger carrying case