McMaster 5552A101 Impact Square Drive Size Adapter, 3 4" Female x 1 2" Male 24WJ88 276 N Between Grooves (mm) 276 N Between Grooves (mm) 12 Liner Frelon(TM) Gold Self Alignment Yes Slot Angle (Degrees) 60 Color Blue Lubrication Self Lubricating Bearing Type Open Accelerated Speed 14 Feet Second Series FMN Running Clearance Class Precision Minimum Operating Temperature 400 Degrees F Static Load Capacity (N) 232 lbf Maximum Operating Temperature 400 Degrees F System of Measurement Metric Self Lubrication Self Lubricating Between Grooves 5 mm Slot Angle 60 Degrees Maximum PV 20 RoHS Compliant Product Type Manual Air Control Valve Exhaust Port Connection Type Threaded Body Style Inline Operating Pressure Minimum 0 psi Lubrication Lubrication Not Required Valve Port Connection Gender Female Operating Temperature Minimum 32 Degrees F Operating Pressure Maximum 150 psi Operating Temperature Maximum 175 Degrees F Coefficient of Volume (Cv) 0 Convert from one square drive size to another the male side to your socket