Proto J07535 Impact Socket, 3 4 in Drive Size, SAE, 2 3 16 in Socket Size, 6 Point, Std, Black Oxide FVRK012000 Raceway Ceramic Coated Operating Temperature Raceway Ceramic Coated Operating Temperature Maximum 400 Degrees F Operating Temperature Minimum 400 Degrees F Number of Rail Holes 25 Mounting Hole from Shaft End 15 mm Mounting Hole Center to Center 40 mm Mounting Hole Center to Shaft End 20 mm Mounting Hole Size 3 110 2012 Features Ideal for Use On Stubborn or Damaged Fasteners Size Stamped on Tool for Easy Identification shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the socket