Industrial Knives SM0-R The SM0-R is a heavy-duty cast metal handle for industrial applications though will also be of interest to the D.I.Y. enthusiast for those tougher jobs. The handle can be opened by hand for blade changing. There is a choice of 4 heavy-duty blades: SM01, SM02, SM03 and SM04. There are also bull-nose versions of the SM01 and SM03 (see illustrations below). It has the added safety advantage of a hand retractable blade mechanism. The blades are available in boxes of 50, or boxed in packs of 5 (50-pack units).
Below are product and packaging options: