Part Number: 2398-9 UOM: 1 - KIT Summary:Stud installer set includes a 9 piece assortment of 1/4" , 5/16" , 3/8" , and 7/16" coarse and fine thread tools. Fitment: Custom Application for 1/4" , 5/16" , 3/8" , 7/16" Country of Origin: USA