Obecome 5Pcs Screw Extractor Remover Drill Tool Kit wiht 1/4" Hex Shank for Easily Remove Stripped or Damaged Screws Surface treatment: Nickel Quantity: 1 set (5pcs) Material: HSS 4241 (HSS4241) Specification: 0 #, 1 #, 2 #, 3 #, 4 # Handle: hex shank 1/4 '' (6.35MM)