This kit allows you to easily use knurling nuts.
This set is compatible with shrimp knuts, NSD-4MR, NSD-5MR and NSD-6MR
Requires a 0.7 inch (17 mm) wrench on opposite sides (glasses wrench recommended), hex key (0.1 - 0.2 inch (3 - 5 mm) on opposite sides. Not included in the kit.