Klein Tools Slotted Impact Socket 66031 3 in 1 SAE 12 Point (1 2 Square Drive 4140 Steel Hot Line Clamp Pole Hardware Tool) Crimpers Brand Manufacturer Bosch Model Identification Brand Manufacturer Bosch Model Identification OEM SKU GPB18V 1CN System Operating Voltage 18V DC Max Lithium Ion Platform Bluetooth Wireless Specification Bluetooth 5 Premium Solid Carbide: Manufactured from Freud's proprietary high density carbide for extended cutting life and superior finish The Klein Tools 66031 3 in 1 Slotted Impact Socket combines 3 4 inch and 9 16 inch hex openings into a single high torque driving attachment engineered for electrical utility pole hardware installation and maintenance Brand Manufacturer Klein Tools® Model Part Number OEM SKU 66031 Tool Classification System 3 in 1 Slotted Reversible Impact Socket Core Metallurgy Material Forged Heat Treated 4140 Alloy Steel Primary Input Drive Interface 1 2 inch Square Drive Anvil Integrated SAE Socket Sizes 3 4 inch and 9 16 inch Hex Socket Point Profile Geometry 12 Point Universal Profile Fastener Safety Retention Transverse Cross Hole Detent Pin Retention Manufacturing Quality Standards ASME B107