Cutting Fiber Cement with Shears
Shears make a nice, clean cut while protecting both your siding material and your lungs
If you’re cutting fiber cement and don’t have a respirator handy, you need to use shears. Shears come in two styles. One type is mounted to a corded drill body. The other style, preferred by Fine Homebuilding contributing editor Mike Guertin, can be easily mounted inside the shaft of a cordless drill. Either way, the keys to using shears successfully are flipping the board over for a nice, clean cut on the face and using a square as a cutting guide.
And to learn more about the tools used when working with fiber cement, read Fiber Cement Tools from Fine Homebuilding issue #193 (Feb/March 2008), pp.82-87.