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 Extra Bite Straight Fluted Extractors Impact Rated No Type Straight Flute Material Machining High Speed Steel Container Type Clamshell Case For Bolt Thread Direction Right Hand Extractor Type Straight Flute Extractor Drill Bit List Number M3 M15 Includes Drill Bits Drill Bits Included Compatible Screw Type Screw Extractor Compatible Thread Direction Left Hand Convert from one square drive size to another Use with an impact wrench that has a pin style socket retainer