Sizes: #1) 1/8"-1/4",
#2) 1/4"- 5/16", #3) 5/16"-7/16" #4) 7/16"-9/16"
#5) 9/16"-3/4".
High Carbon Alloy
Tempered Steel, Multi-Fluted
Extract a wide variety of screws, easy to use
Hardened for
long life, Reverse Thread, locks on and backs out broken studs