Two Knives in One. Workers who routinely carry two utility knives might appreciate the Bostitch Twin Blade Knife. This clever gadget keeps two separate blades at the ready and allows users to retract one and extend the other with a flip of a thumb; the sliders interlock to ensure that only one blade at a time can be extended. The knife comes outfitted with two straight and two hook blades. It costs about $10. Stanley Fastening Systems, 800/556-6696. www.bostitch.com
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