Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge Tool,Blue

The DAG-2.2 is an indispensable shop tool that can be used to both measure and straighten misaligned derailleur hangers, solving a high percentage of shifting problems.Gauge bar made from heavy gauge, chrome plated steel.Updated with tighter tolerances for improved accuracy.Adjusts to fit 20 to 29+ wheels.Upgraded, large inner shaft for added strength.Replaceable 10mm x 1 threaded tip.Improved clearance and reach to work on more frame/derailleur hanger combos, including low clearance thru axle derailleur hangers.'