Optimum Alkaline Battery, AAA, 12 PK ORS NASCO Thicker and with the Tuff Thicker and with the Tuff Tooth™ design for the toughest cutting applications Enhanced beam strength that reduces blade deflection and twist 8% cobalt high speed cutting edge resists higher cutting temperature An additional 30% in width of the tool steel tooth makes for stronger teeth and less tooth strippage on most difficult cutting applications permanently lubricated three speed floor fan Durable aluminum blades Coated steel guards with retaining clips Designed for use in clean and dry commercial environments such as schools Duracell® Optimum batteries contain 4X of Duracell’s patented POWER BOOST Ingredients vs Coppertop Packaged in a new slider pack with a resealable storage tray that provides a more organized way to store your batteries Available in AA and AAA battery sizes