uxcell 75mm Long TT25 Head Magnetic Security Torx Screwdriver Bits Gray 10pcs Product Name : Security Torx Screwdriver Bits;Model : TT25 Head Diameter : 4.4mm / 0.17";Hex Shank Size : 6.3mm / 1/4" Shaft Length : 48mm / 1.9";Total Length : 75mm / 3" Material : S2 Tool Steel;Color : Gray Weight : 150g;Package Content : 10pcs x Security Torx Screwdriver Bits