Spare blade for 90 55 280. Designed for cutting iron, copper, or aluminum sheet metal up to a maximum thickness of 1.2 mm and plastic up to a maximum thickness of 2.0 mm. Materials are cut without deformation, providing clean cut edges with no trimming activities needed. Features a chip breaker. Cutting width: 2.7 mm. Capacity includes half-moon, square millimetres, square drive, step-like square, triangular, and clamping widths for hexagon, round, and square shapes.