Genius Tools 1/2" Dr. 17mm Thin Wall Deep Impact Socket w/Plastic Sleeve - 448517W
Proxxon 23974 Impact socket spanner insert, extra long for use with pneumatic screwdrivers, extreme wear resistance, 1/2 inch, length: 130 mm, diameter: 19 mm, torque: 500 Nm : Amazon.com.au: Home Improvement