Replacement Bit #1 Square & #2 Square – Heat-Treated Screwdriver Bit Klein Tools Replacement Bit #1 Square & #2 Square provides durable, heat-treated bits designed for use with Klein's 10-in-1, 11-in-1, and 10-Fold™ Screwdriver/Nut Drivers. These industrial-strength bits ensure reliable performance and long-lasting durability, making them suitable for electrical distributors and professionals requiring precision tools for wire and cable work or switchgear assembly. Specifications Overall Length: 1.25 inches (3.2 cm) Package Quantity: 2 Bits Weight: 0.16 oz (4.5 g) Compatible With: 10-in-1, 11-in-1, and 10-Fold™ Screwdriver/Nut Drivers Features Heat-treated for enhanced durability and performance Industrial strength construction Quick and easy fit into Klein Tools multi-driver handles Downloads & Links Spec Sheet