Features 1、The damaged nut and bolt extractor fits 9, 10, 11, 12, 13, 14, 15, 16, 17 and 19mm heads. 2、Spiral cutting teeth provide a firm grip to remove round or damaged bolts. 3、The damaged nut and bolt extractor is made of aluminum alloy, which is strong and durable. 4、A total of 10 bolt and nut removers are included, which can meet different needs and are easy to replace. 5、The bolt and nut remover has various specifications and is suitable for different applications. Specification Item Type: Nut Extractor Remover Type: Damaged Nut and Bolt Extractor Quantity: 10Pcs Material: Aluminum Alloy Numbering Fits Hexadecimal Size Approx. Outer Hex Size Approx. #1 9mm / 0.35in 16mm / 0.63in #2 10mm / 0.39in 16mm / 0.63in #3 11mm / 0.43in 17mm / 0.67in #4 12mm / 0.47in 19mm / 0.7in #5 13mm / 0.51in 19mm / 0.7in #6 14mm / 0.55in 21mm / 0.83in #7 15mm / 0.59in 22mm / 0.87in #8 16mm / 0.63in 24mm / 0.94in #9 17mm / 0.67in 24mm / 0.94in #10 19mm / 0.7in 27mm / 1.06in Package List 10 x Damaged Nut and Bolt Extractor