Milwaukee Genuine OEM 48-03-1050 Spanner Wrench and Spindle Flange Lock Nut Combination Kit for Angle Grinders with 5/8 Inch 11 Spindles (Angle Grinder Not Included) APPLICATION: Use this to keep metal discs properly attached to your angle grinder, keeping it in top working condition UNIVERSAL NUT: This nut will fit with grinders that have a 5/8" x 11 spindle SPANNER: A spanner is included to keep the nut properly fastened to your grinder PRINTED INSTRUCTIONS are on the package, allowing for easy installation onto your grinder TOUGH METAL CONSTRUCTION of the spanner lets you use it over and over again with minimal wear and tear