ITEM NAME:New Adjustable 4mm Dia Pin Wrench Spanner For Angle Grinder Hubs Arbors Tool Z a.imagelink a:hover.imagelink {color:#db3606;.Fits many grinder hubs, power tool arbors and other devices and fasteners. Adjustable range: 10mm-150mm. Pin Depth: 6mm/0.24" (approx.). Indispensable tool for use with grinders or other power tools that use opposing-hole fasteners.