This insulated screwdriver features an ergo molded, insulated cushioned grip. The handle is molded on for maximum durability, and individually tested for insulation. The CRM-72 tool steel blade is super hardened and tempered for long life performance. It is also precision machined for a perfect fit. Insulated 1000 Volt rated protection certified, 10,000 Volt tested. Insulatd Screwdriver, Slotted, 5/16x7 , Rnd This product contains a chemical that is regulated under California Proposition 65. Warning This product contains a chemical known to the State of California to cause cancer. Warning This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.