Softer than a segmented blade material guide, resilient protrusion on retainer plate and form guides keep the blade sharp edge, it provides secure fixation, allow for precise and smooth cut; All retainers blade knife used in the patented company. Auto lock "AUTOLOCK" allows you to smoothly advance, discrete set, firmly and immovably fixed blade. Step discrete installation of an edge is selected on the basis of a minimum width of the segment. Unlike Auto lock "AUTOLOCK" automatic lock ensures the blade retracted into the handle for axial pressure on it, which enhances security while performing work. Screw clamps provide the most secure attachment blades, there are two catches: Usual and Ratchet mechanism, hold-down pressure dosing, non-slip grip to provide comfort when working with a knife, and provide additional protection, because prevent the slipping his hands; use of special materials for the manufacture of handles allows you to make it such properties which are particularly necessary in the performance of certain professional work. ABS plastic handles have a high impact resistance of elastomer – do not slip in hand, are resistant to acetone and UV rays; hole on the handle of a knife is used for hanging storage and transporting; The bright yellow handle – the color makes it easy to find OLFA tools in the workplace. Olfa Blades are especially proud of the company. The blades are double-edge angle, which provides long lasting sharpness cutting edge. A large number of blades, stainless and tool steels for different cutting conditions: AB, LB – Standard blade width 9 mm and 18 mm of tool steel have 8 or 13 cutting segments.