Klein Tools 44003 Lightweight Knife 2-3/4-Inch Drop Point Blade

No. Klein's own warning on the 44003 is explicit: never use it on or near live electrical circuits. The blade is AUS 8 stainless steel and the handle is nylon resin, neither of which is insulated or rated for electrical work. It's a general-purpose cutting knife for an electrician's pocket, not an insulated tool. Klein also states you should wear approved eye protection when using it.

Both. A reversible thumb stud lets you flick the blade open with one hand, and because the stud reverses it works left or right handed. Once open the blade is held by a lockback mechanism, so it won't fold on your fingers while you're cutting sheathing or box fill. Closing it takes two hands, as with any lockback.

Closed, the 44003 measures 4.125 inches (10.5 cm) long, about 1 inch wide and 1 inch high, and it weighs 2.6 oz (74 g). Open it runs 7 inches (17.8 cm) overall. That's a slim, light carry for a tool pouch or pants pocket where you're already loaded down with strippers and pliers.

The 44003 uses a 2.75 inch (7 cm) drop point blade. A drop point has a strong tip with a continuous belly, so it handles general slicing, scoring cable jacket and breaking down cartons without the fragile point of a clip or dagger style. If your work is mostly straight jacket scoring, a dedicated hooked cable splicer's knife does that job with less risk of nicking conductors, but for a do-everything pocket blade the drop point is the common choice.

AUS 8 stainless steel. It's a stainless grade that takes a keen edge and resists the rust you get from damp basements and outdoor work, and Klein rates it for superior edge holding. It sharpens back easily with a standard pocket stone or ceramic rod, which matters when you're cutting abrasive materials like Romex jacket and cardboard all day.

Klein's warning with the 44003 tells you to check local law on the legality of selling, carrying, or possessing the knife. Blade length is 2.75 inches, which is where many municipal and facility rules draw their line, so if you're stocking these for a school, hospital, government or airport crew, verify the rule for that jurisdiction and site before you hand them out.

The handle is impact-resistant nylon resin in black, with a rubber insert for grip. Nylon resin takes a drop onto concrete better than a thin stamped metal scale, and the rubber insert gives you something to hold with gloved or sweaty hands. Whole knife weighs 2.6 oz, so it's not a heavy thing hitting the ground either.