Reliable to Use: made of hard steel, the nuts are stronger, more wear , it has good heat dissipation and is beneficial to prolong service life which are compatible with most grinders and lock nuts, and are necessary tools for flexible and portable home use 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, Weight: 2.449997117606 Pounds, Manufacturer: HWIREUIGT