Fine Adjust Mag Base Set with AGD Indicator 

Magnetic Base features:

110 lb.pull

Fine adjustable 

V-bottom base

Magnetic Indicator Back features:

Use for positioning the indicator on most metal surface.

Protective coating 

AGD Indicator features:

1" travel 

AGD group 2

2-1/4" dial diameter

Reading: 0.001"

Continuous reading: 1-100

Revolution counter

Tolerance indicators