Dial Indicator Balanced Reading AGD 1 AGD No. Dial Size 1.680 In. Range 0 to 0.250 In. Graduations 0.0010 In. Dial Reading 0-50-0 Range per Revolution 0.100 In. Dial Color Green Bearing Type Jeweled Back Type Lug Contact Point Dia 1/4 in L w/4-48 Thread Bezel Lock Yes Features 3/8 in Mounting Stem Hardened Gears and Stainless Steel Rack Shatter-Proof Curved Crystal Lens Controlled Mesh of Rack and Pinion Positive Pressure Pull Back Spring Standards ANSI/AGD