Reliable to Use: made of hard carbon steel, the nuts are stronger, more wear , it has good heat dissipation and is beneficial to prolong service life Multi Compatibility: these grinder nuts are suitable for 4-1/2 inch, 5 inch and 7 inch grinders, compatible with DW400, DW4011, DW4010, DW849, D28402, 9005B, 9015A/B, 9015DB, 9016d, etc. can be replaced compatible with 224399-1, 193465-4 and 224568-4; Please check the size and compatibility before purchasing Complete Package: you get 1 angle grinder wrench and 12 sets of internal and external grinder nuts, which are compatible with most grinders and lock nuts, and are necessary tools for flexible and portable home use Adjustable Wrench Design: adjustable grinder wrench is compatible with most grinders and lock nuts, and is generally suitable for 4 inch, 5 inch, 6 inch, 7 inch and 9 inch angle grinders, widely useful Easy to Replace and Install: use our grinder nuts kit to improve the performance of angle grinder; When replacing, adjust the appropriate width of the grinder wrench to adapt to the grinder nut; Tighten the new external locking nut with the adjustable angle grinder wrench; Then your angle grinder work normally, Manufacturer: Akfldms