IS 20 4x0,8 Size: 4mm x 0.8mm Features: -Material: Chrome-plated.-Hand-operated, knurled grip.-Bit as per DIN ISO 2380-1 form B.-Often used in industry, aerospace.-Bit in vanadium special steel, manganese-phosphated.-Square drive as per DIN 3120 - C 6.3, ISO 1174, with ball retaining groove.-Tip length (t): 0.55" - 0.57".-Drive connector square (female): 0.25". Dimensions: -Blade / Cutting edge width: 0.16" - 0.31".-Blade thickness: 0.03" - 0.06".-Dimensions: 1.1" H x 0.47" W.