| Country of manufacture: USA Set contents: T9, T10, T15, T20, T25, T27, T30, T40 Blade surface treatment: Proguard processing (black dyeing) The special nylon resin embedded in the side of the cutting edge holds the bolt in place with the Pro-Hold function, which exerts its power in narrow or deep places that are hard to reach. The special nylon resin used in Prohold is made to withstand thousands of desorption tests using the method specified by Bondas. | |