Rennsteig 471-903-3-RT Dual-Edged Screw Extractor Set (Size 1-3) in Plastic Tube The new generation of Screw Extractors, Tapered flute design Made of high-strength steel (chrome vanadium) for greater resistance to breaking and rounding out For unscrewing ruined screws and bolts without damaging threads Can be turned in clockwise or counterclockwise direction (for right-and left-hand threads) 100% Made in Germany by Rennsteig