/ Precision Measuring Tools / Precision Hand Tools / Indicators & Gages / Indicator Accessories / 671 * Not actual product image 52886 671 Universal Attachment for Dial Indicators 52886 Other similar products The Starrett 671 Universal Attachment is for use with indicators having standard AGD .375" (9.5mm) stem diameters. Features Specifications Contact Starrett Features Two interchangeable arms, one straight for measuring internal surfaces and one angular for measuring at right angles to the indicator spindle Specifications : Range (Approx.) 1/8" (3mm)