The package comes in four sizes for ease of use. Features: It is useful for breaking seized nuts apart Use a powers tool or ratchet to tighten the tool against the nut and split it open We have 4 sizes of nuts splitter for your special need. You can choose either one for the fine use. The surface of the tool is rust-proof, beautiful and generous, not easy to slip. High hardness, sharps cutting, long service life. Specifications: 1: Chief: 77mm Scope of application: 9-12mm Diameter: 13mm Weight: 97g 2: Chief: 95mm Scope of application: 12-16mm Diameter: 14mm Weight: 172g 3: Chief: 126mm Scope of application: 16-22mm Diameter: 19mm Weight: 409g 4: Chief: 147mm Scope of application: 22-27mm Diameter: 21mm Weight: 642g Material: los vanadium steel Package size: 245 * 170 * 55mm / 9.6 * 6.7 * 2.2in Package size: 1600g / 3.5lb Packing List: 1 * Nut Breaker