Groovetech
Groovetech Guitar Bass Tech Multitool
$25
GTMLT1 10-in-1 Guitar/Bass Multi-Tool Contents
Screwdrivers
#1 Phillips, #2 Phillips, 2.5mm Slotted
Hex Wrenches
1.5mm, 2.5mm, 3mm, 4mm Ball End, 0.050", 1/8" Ball End, 3/16" Ball End
Misc.
String height (action) ruler