20pcs Hex Key Allen Bit Set Quick Change Connect Impact Driver Drill Metric Long
Quantity: 20pcs. 20Pcs Screwdriver Bits. Bit set shank: 6.35mm/1/4", Length: 100mm(3.94"). 【Professional Hex Bit Set Are Made of S2 Alloy Steel, Very Well Made And Tough As Nails】 Hardness can reach HRC60 degree.