Wiha 28160 Drive-Loc VI Nut Driver Hex 5/16 x 150mm

Drive-Loc VI Nut Driver Hex Interchangeable Blade 5/16" x 150mm

Drive-Loc VI Features Adjustable/Reversible Locking Blades
Selectable Lengths from 1.7" to 4.8" in 1/8" Increments
Blades Made of High Performance CRM-72 Tool Steel
Through hardened & Hard Chromed for maximum durability
Guaranteed Professional Field Service Quality Made By Wiha