• Heat treated high strength steel.
• Removes bolts without wedging or binding.
• Works on left or right threaded bolts.
• Tool #1: Screw size 1/4" - Drill size 1/8".
• Tool #2: Screw size 5/16" - Drill size 11/64".
• Tool #3: Screw size 3/8" - Drill size 15/64".
• Tool #4: Screw size 7/16" - Drill size 9/32".
• Tool #5: Screw size 1/2" - Drill size 3/8".
(California Prop 65)