3/8" Drive 6-Point Metric 20 mm Flank Drive® Semi-Deep Impact Socket | IMFMS20 PHILLIPS®/Standard Outside Dia : 3-3/4

Outside Dia : 3-3/4

• Gear Teeth : 72

3" deep trays are positioned for convenience

• Interchangeable drawers adjust to the way you work

3/8" Drive 6-Point Metric 20 mm Flank Drive® Semi-Deep Impact Socket | IMFMS20 PHILLIPS®/Standard Outside Dia : 3-3/4Snap on impact sockets are heat treated to optimize impact service life with a lower hardness than hand sockets and are able to withstand repeated cycling loads of impact wrenches Snap on uses a proprietary blend of special alloy socket steel that provides long life and great strength Flank Drive wrenching system delivers up to 20% more turning power without slipping or rounding while exceeding ANSI performance standards Industrial, black oxide,