34434 - safety knife with a trapezoid blade SECUPRO PROSAFE No. 01152 - MARTOR knife with robust handle. Can be used for cuts requiring the application of extra force. For right and left handers. You activate the blade with a controlled flick of the wrist . Blade has two sharp edges - only turn over the blade. Measurements (L x W x H): 158 x 20 x 39.7 mm. Weight: 152 g. Cutting depth: 16.5 mm. Basic material: Aluminium.