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Snap-on S121A | Flank Drive Deep Socket | 3/8" SAE, 12-Point, 1/2" Drive
Part Number : S121A
Built for 3/8" fasteners, this 12-Point deep socket (S121A) takes a 1/2" drive and uses Flank Drive geometry. Length is 3-1/4" overall, with a bolt clearance depth of 2-9/16". The hex end is 19/32" across, with 9/32" of hex depth. The chrome finish is a nickel-chrome alloy.
Key features
- Hex end diameter 19/32", hex depth 9/32"
- Bolt clearance depth 2-9/16", drive end diameter 29/32"
- Nickel-chrome alloy finish resists rust and corrosion
- Flank Drive system grips the flats of the fastener, with 15-25% more turning power cited by Snap-on
- 12-Point configuration, ASME B107.110
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