10PCS ELECTRICAL INSULATION SCREWDRIVER SET 7pcs screwdriver size: PH6*150mm, PH6*125mm, PH5*75mm, PH3*75mm, SL6*125mm, SL5*75mm, SL3*75mm 1set dual-purpose screwdriver: PH6*80mm + SL6*80MM, handle length: 180mm 1set dual-purpose amphobious pencil: PH+SL, handle length: 90mm 1set telescopic dual-purpose screwdriver: PH6*25~60mm, SL6*25~60mm *Dual-purpose screwdriver can switch into a cross or a word when using , need to manually pulled out a batch of pole change direction. *Telescopic dual-purpose screwdriver into or adjust the number of bar length, the manual will be adjustable head downward real don't let go, to want to use the length of the let go. *Pencil can switch into a cross or a word, when using only need to manually pulled out a batch of pole change direction. *PP material, temperature resistant: 100 degrees, Suitable for parts and general machinery parts, corrosion resistance insulation parts.