2 to 6'' Dial Indicator Bore Gage Set .0005 GRAD Gauge Engine Cylinder Hole Case Dimension: 5-1/2 in L x 14-1/2 in W x 2-1/4 in H *Rough Estimation* Weight: 2.25 Pounds *Rough Estimation* Measures Bore To 10" Deep Range 2" to 6" Diameter 0.001" Precision Graduations Includes Gauge And Interchangeable Contact Points Dial Gage Contains Jeweled Bearings Deep Cylinder Bore Gauging To A Depth Of 10" Affords The User The Ability To Measure Out- Of-Round Conditions And Tapers Of Cylinders Without The Necessity Of Removing Pistons - Critical Wear Area Of The Cylinder Can Be Reached With This Gage Dial Face Size: 2-1/4'' Case Included Qty: 1 Light Item