34423 - safety knife with a trapezoid blade SECUNORM MIZAR No. 125001 - MARTOR knife with multipurpose locking function (3-in-1 activator) - slide it to lock and unlock your cutting tool. For right and left handers. Blade has two sharp edges - only turn over the blade. Measurements (L x W x H): 139 x 15.6 x 50.5 mm. Weight: 59 g. Cutting depth: 15 mm. Basic material: Glass fibre reinforced plastic.