Park Tool Axle Vise AV-1

The AV-1 is used in a bench vise to hold the axle and prevent it from turning while making adjustments to a wheel’s hub.

Warning: California Proposition 65 

https://planet-cyclery.myshopify.com/pages/warning-california-proposition-65

2 different diameter receptacles for front and rear axles

Aluminum jaws prevent damage to axle threads

Simple to use — just insert axle into proper diameter opening and tighten bench vise