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The GrooveTech kit provide everything you need to work on your bass, and an Easy Setup Guide is included that takes the mystery out of it.
Have tool kit; will travel. Bass players may know a little about truss rods and action, but few actually attempt adjustment. That's a shame, because a substantial upgrade in your performance can be realized with a properly set up axe. The GrooveTech kit...

The GrooveTech Jack and Pot Wrench provides three thin-wall sockets - 1/2", 7/16", and 12mm - in a compact four-inch tool to handle the most common sizes of jacks and pots on instruments, amps, and other audio gear.
Instrument and amp jacks are notorious for coming loose. And with a shallow nut and recessed cavity, access can be challenging. Until now, that is. The GrooveTech Jack and Pot Wrench provides three thin-wall sockets - 1/2", 7/16", and 12mm - in a compact...

Standard Driver provides firm contact over the entire slot width for damage-free adjustment.
Vintage-style truss rod nuts have very thin yet wide slots and are made of unhardened steel, so normal slotted screwdrivers will cause damage - as evidenced on many vintage guitars and basses. We developed two screwdrivers specifically for this application....

The Cheater Driver allows quick minor adjustment without removing the neck
Vintage-style truss rod nuts have very thin yet wide slots and are made of unhardened steel, so normal slotted screwdrivers will cause damage - as evidenced on many vintage guitars and basses. We developed two screwdrivers specifically for this application....

The first multi-tool for guitars and basses that's actually useful, without unnecessary gimmicks.
New Second Generation Design Introduced in 2008 - the original GrooveTech Multi-Tool was an instant hit with guitar and bass players alike. Never before had a multi-tool provided such functionality or made use of pro-grade components. Despite...

2-pickup, 2-band, 4-knob Volume (Push/Pull Active-Passive) - Volume - Treble - Bass
Nordstrand 2B-4a Control Configuration Volume (Push/Pull Active-Passive) Volume Treble Bass Technical Specifications Overall Gain: +/- 10db by a trim pot on the module Treble: ...

2-band, 2-pickup, 4-knob Volume (Push/Pull Active-Passive) - Blend - Treble - Bass
Nordstrand 2B-4b Control Configuration Volume (Push/Pull Active-Passive) Blend Treble Bass Technical Specifications Overall Gain: +/- 10db by a trim pot on the module Treble: ...

3B-3 ( 1 pickup - 3 Knob)- Volume (pull passive)- Mid (pull frequency selector)- Treble/Bass Stack
Nordstrand 3B-3 Control Configuration Volume (Push/Pull Active/Passive) Mid(Push/Pull) Treble/Bass Stack Technical Specifications Overall Gain: +/- 10db by a trim pot on the...

2-pickup, 3-band, 5-knob Volume Push-Pull (Active/Passive) - Blend - Treble - Mid (Push-Pull) - Bass
Nordstrand 3B-5b Control Configuration Volume Push-Pull (Active/Passive) Blend Mid(Push/Pull) Treble Bass Technical Specifications Overall Gain: +/- 10db...