Snap-on THS181A 1/2" Drive 9/16" 12-Point Flank Drive Deep Socket

Snap-on THS181A is a 1/2" drive deep socket with a 9/16" 12-point Flank Drive design. The Flank Drive system delivers 15-25% more turning power by applying force to the fastener's flanks rather than corners. Locking holes on all sides enhance retention, while the nickel-chrome finish resists corrosion. The 12-point configuration provides superior grip on hex fasteners.