- 3 piece kit - Removes screws: No. 4-14, bolts: No. 10-5/16" (5mm-8mm) - Self-centering drill tip - no walking or wondering - Drills up to Grade 8 and 10.9 class bolts - Use in reverse only with 3/8" variable speed reversible drill - Extract screws up to 4" long from wood, plastic or metal - Compatible with quick connect chuck systems