Abstract: A carpet trimming tool is disclosed for trimming edges of two carpet sections to be placed into abutment and joined together by a thermo adhesive tape or the like. The device utilizes a base with a pair of transversely spaced, upwardly projecting blades cooperating with a downwardly directed clamping arrangement holding the two carpet sections in engagement one with each of the two blades. Since the two blades cut the respective carpet sections from the underside generally cutting only the base of the carpet, and due to the constant spacing between the two blades, the resulting joint is virtually entirely concealed as there is no damage to the tuft caused by the cutting.

Abstract: A cutting blade for use in cutting tools such as a carpet trimming device of hand knives is disclosed of the trapezoidal contour where the major base portion is the cutting edge and the blade is provided with a row of preferably three openings for a clamping screw. A series of scorelines perpendicular to the cutting edge and disposed centrally between the respective clamping openings enables the blade to be used both as a regular blade and broken into even or uneven blades to allow for selective adjustment of the cutting depth.