196 Series Universal Back Plunger Dial Test Indicator with Adapter ORS NASCO self locking mechanism High impact ABS case with self locking mechanism High impact ABS case with durable rubber shell withstands heavy use Engineered for abrasion resistance with polymer coated blade Measure accurately using corrosion resistant Tru Zero® end hook Non marring base helps protect work surface efficient On Off magnetic workholding tool featuring multiple angles with a strong 80 pounds hold powered by Magswitch Holds flat and round metal Fast 90 and 45 degree angles for small pieces Holds common angles with superb strength On Off allows precise placement Accurate and reliable Few moving parts 3 different styles of contact points Simple operation