PBC Linear PSFM0812 12 Linear Sleeve Flange Bearing, 8 mm Inside Dia, 12 mm Lg, Frelon Gold, Precision TS50185 15° Opening Angle Ratcheting Nonratcheting 15° Opening Angle Ratcheting Nonratcheting Appearance Polished For Use With Screws and Nuts Grade Industrial Number of Heads 2 System of Measurement Inch Country of Origin United States Use extensions to gain access to fasteners in locations that would otherwise be difficult to reach Male square is oriented in line with female squares for use with fixed head torque wrenches Full chamfer at drive opening (when applicable) for easy engagement with drive tools Additional Features: Drive end chamfer and four detents help provide quick positive engagement with drive tool on any of the socket drive walls Size stamped on tool for easy identification Side locking hole 000 lb sq in fpm Running Clearance Class Precision Bearing Type Closed Self Lubrication Self Lubricating Country of Origin United States Recommended Housing Bore 12