[Portable Design] Comes in a practical plastic box for easy carrying and storage. [Versatile Use] Suitable for a wide range of standard variable speed bits for added convenience. [Precise Screw/Fastener Removal] Cuts rusty nuts without damaging screw threads. [Material] Made from forged chrome vanadium steel for long-lasting performance. [Efficient Nut Extraction] To quickly remove stubborn bolts and broken bits without damage. Specifications: Features: For removing stubborn bolts, broken or damaged pieces, studs, etc. Cuts rusty, stripped, or rounded nuts without damaging the screw/fastener thread. Forged and hardened chrome vanadium steel for durability. Suitable for most standard variable speed bits. Portable plastic box for easy carrying. Specifications: Material: HSS4241 Color: Silver 5-Piece Bolt Extractor Set: Used to remove items with sheared heads or rounded grooves Turn the extractor counterclockwise to tighten and remove broken bolts in the hole. 5pcs/set of 40CRV steel extractors Portable plastic box Size: No. 1 - 3mm - 6mm No. 2 - 6mm - 8mm No. 3 - 8mm - 11mm No. 4 - 11mm - 14mm No. 5 - 14mm - 18mm 2-Piece Nut Splitter Set: Used to remove damaged or corroded nuts without damaging the screw/fastener thread Chrome-plated body Chrome vanadium steel blade/wing Nut size: 12mm-16mm & 16mm-22mm Package List: 12pcs/set * Nut Splitter Set