Klein Tools Coaxial Metric Impact Socket Set 66050E 5 Piece 8 Sizes (1 2 Square Drive 4140 Steel 12 Point Utility Hardware Installation Kit) Roofing Nails Brand Name Freud Model Number Brand Name Freud Model Number SKU 39 101 Product Tool Classification Cove and Bead Groove Plunge Router Bit Overall Cut Diameter (D) 0 Internal Rare Earth Fastener Magnet: High strength magnets hold hex head fasteners and bits firmly locked inside socket wells during high RPM operation Electric Utility Pole & Infrastructure Bolting: Driving heavy structural metric fasteners and pole line hardware across 13 mm to 32 mm dimensions without manually changing socket drive heads Impact Driver & Wrench Conversion: Operating directly on 1 2 inch square drive impact wrenches or adapting 1 4 inch power hex impact driver chucks via the included adapter shank