Radius corner on working end provides better gripping of fastener Chamfered drive opening smooths connection between socket and drive tool Made from Chrome Molybdenum Alloy Steel for strength and durability Black phosphate finish resists corrosion For use with impact power / air tools 1/2in Drive 27mm 6 PT Deep Impact Socket Radius corner on working end provides better gripping of fastener Chamfered drive opening smooths connection between socket and drive tool Made from Chrome Molybdenum Alloy Steel for strength and durability Black phosphate finish resists corrosion For use with impact power / air tools Radius Corner Design Chamfered Drive Opening
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