ApplicationThis is a set of 10pcs heavy duty tools to help remove nuts, bolts, screw heads, studs, etc. Premium MaterialThe bolt remover kit is made of hard alloy, they are of strong strength and long durability. Spiral Cut TeethThe spiral cut teeth provide a positive grip to remove rounded or damaged bolts. 10 Sizes HeadThe nut remover kit is suitable for heads of size 9, 10, 11, 12, 13, 14, 15, 16, 17 and 19mm. How to UseThese removal tools can be driven with a metric wrench or socket for quick work. All these tools are packed in a case for easy storage and transportation. Features: This is a set of 10 heavy duty tools to help remove nuts, bolts, screw heads, studs, etc. It fits 9, 10, 11, 12, 13, 14, 15, 16, 17 and 19mm heads. The spiral cut teeth provide a positive grip for removing rounded or damaged bolts. Made of hard alloy, they are very strong and durable. These tools can be driven with a metric wrench or socket for quick work. All these tools are packed in a case for easy storage and transportation. Features: Material: Alloy Color: Black Head Size: 9mm/0.35'', 10mm/0.39'', 11mm/0.43'', 12mm/0.47'', 13mm/0.51'', 14mm/0.55'', 15mm/0.59'', 16mm/0.63'', 17mm/0.67'', 19mm/0.74'' Case Size: Approx. 17.2 x 7.9 x 3.5cm / 6.77" x 3.11" x 1.37" Package Weight: Approx. 368g Package Included: 1 x 10pcs/set Nut Remover Kit