Features 1、Made of high‑strength alloy steel, rust‑proof and wear‑resistant, with maximum durability. 2、Accurate design according to original standards, high performance, high quality and good stability. 3、Well‑made all‑plastic tool box packaging, convenient for storage and easy to carry out. 4、Master set of multi ribe bits for removing the locking wheel nuts on vehicles, effortless and easy to use. 5、Use with 17mm wheel nut socket can have a better impact on quality for alloy wheels air tool. Specification Item Type: Spline Bit Material: Alloy Steel Size: B51 / 6 ribs B52 / 7 ribs B53 / 8 ribs B54 / 9 ribs B55 / 10 ribs B56 / 11 ribs B57 / 12 ribs B58 / 13 ribs B59 / 14 ribs B60 / 15 ribs B61 / 16 ribs B62 / 17 ribs Package List 1 x Spline Bit Kit (12pcs) 1 x Tool Box