IDSE7 | Teng 7pc 1/4in Dr. Impact Driver Set For use with 1/4 hexagon drive impact bits Supplied complete with the most popular screwdriver head sizes and types Screw extractor bits also included for removing damaged fastenings Bits are held in a handy bullet holder for safe storage 1/4 Drive reversible impact driver Screw Extractors: #1(2.5-4mm) #2(4-6mm) #3(6-8mm) 1/4 Hex Impact Bits: (Length 50mm) PH1 PH2 & Flat 5mm