Nice Nut Driver if you have limited access for positioning M4, M5, m6 or M8 nuts.
OnShape Link for M4 Grip:
https://cad.onshape.com/documents/e9249799cb5c0950f5b22173/w/4cc45d709fd5975ffa6b50cd/e/8e683669ca7719ded1337aa6
OnShape Link for M5 Grip:
https://cad.onshape.com/documents/aa9392552f772187ea5ac559/w/832020c894094446681aee01/e/a2125ee93b3f75a30636484b
OnShape Link for M6 Grip:
https://cad.onshape.com/documents/2c15583ac1d7bc30d8c3ff6c/w/fdd98f9e5b876d7de609275a/e/63dd697490a4595b2c74f577
OnShape Link for M8 Grip:
https://cad.onshape.com/documents/35ea45400374cd893d2bc9b7/w/e52a4f92b4aa212d6ad06e81/e/28eb4e275c4bc5f6f1cd1788
The author marked this model as their own original creation.