[17mm Oscillating Railway Socket]
[17mm Semi-Long Socket]
[19mm Semi-Long Socket]
[21mm Semi-Long Socket]
[Set of 3 (17mm 19mm 21mm) Semi-Long Socket]
Easy to use semi-long size; Applications: For a wide range of uses, such as temporary frames, houses, electrical work, and plumbing work. Features: Easy to use semi-long size, compatible with 18 V impact drivers, 12-sided socket that is easy to insert into bolts and nuts.