Kett is the number 1 electric shear on the
market and this is the best selling unit for fiber and cement board. Lots
of other companies use the Kett Shear Head on their drill. This unit uses
a black and decker drill with the Kett fiber-cement board shear head. It
can cut up to 80 inches a minute in 1/2" fiber or cement board. It works
great for cutting floors or wherever you need it. No airborne dust and
minimal clean up.