The FX Pro thinning has a 3 dimensional style handle, to give a more comfortable cutting position, and a twisted thumb ring, to aid a more natural movement of the thumb, fingers and elbow. These design features help to relieve the stress and strain on your arm whilst cutting. The 40 tooth flat blade provides a 35% cut ratio, and is complimented by a top side sword blade. A light and smooth cutting action is provided by the dry bearing screw system. Contains less than 0.6% nickel to help prevent metal allergies.