Item No.: H45B637

Material:Cr-Mo,

4Pcs 3/8" Dr.:8,10,12,13mm;

6Pcs 1/2" Dr.:14,15,16,17,19,21mm;

2pc straight bar;

For using with impact guns;

Simply place socket on damaged or rounded nuts and bolt and turn with impact gun;

The grip on fastener tightens as more torque is applied.