Kraft Tool is the manufacture of high quality replacement power trowel blades. They are available for most power trowels on the field today.  Most sizes are available in finish, combination and float style power trowel blades.  Kraft Proform Power Trowel Blades are made of hard thick steel for long life and fewer changed. You can order standard blades, ProForm Ultra Blue, or Proform Heavy Duty Gold for up to 25-50 percent longer life. All the blades are sold in a set of 4 and  are manufactured in the USA.