Proxxon industrial impact 3 piece socket set proxxon 23938 p set of 3 impact sockets from proxxon industrial suitable for use with frac12 in 12 5mm pneumatic screwdrivers these high quality sockets can be used to tighten and loosen wheel nuts without causing damage to aluminium wheel rims p proxxon industrial 23938 impact socket set 1 2 17 19 21mm 3 piece