These Klein Tools Heavy Duty Lineman's Pliers have high-leverage streamline design with cross-hatched knurled jaws. They are truly heavy duty pliers with thicker dipped "handform" handles, providing more comfort and effectiveness. They are made of forged steel with induction hardened knives for long lives. 9-Inch pliers with hot riveted joint deliver smooth action. Knife is induction hardened to deliver precise cut. Steel alloy pliers have plastic-dipped handles. Precision-hardened plier head for on-the-job toughness. Unique handle tempering helps absorb the "snap" when cutting wire. Handform" handles for full gripping and cutting power. Custom, US-made tool steel. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.