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Snap-on SFSM21 | Flank Drive Deep Socket, 3/8 in Drive | 21 mm, 6-Point, 66.7 mm long
Part Number : SFSM21
SFSM21 is a deep metric socket for 21 mm fasteners, with a 6-point opening and a 3/8 in drive. At 66.7 mm long, it gives 48.1 mm of bolt clearance depth and has a nickel-chrome alloy finish that resists rust and corrosion.
Key features
- 21 mm 6-point opening, metric sizing
- 66.7 mm overall length, 48.1 mm bolt clearance depth
- Hex depth 15.1 mm, hex end diameter 28.6 mm, drive end diameter 27.8 mm
- Flank Drive system grips the flats of the fastener rather than its corners
- Nickel-chrome finish for corrosion protection
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