Put Dienes’ 100 years of know how to work for you when choosing your source motor driven female/bottom knives. Dienes Corporation manufactured our motor driven female/bottom knives to the tightest tolerances in the industry. Our slitting knives are manufactured from the highest quality steels available. These female/bottom knives are available as single or double edged and in materials such as 52100, D2, and carbide. Leave it to the experts and contact Dienes Corporation today!