Angled face and three dovetail mounts for mounting horizontally or vertically from the front, top, or back of the indicator Value Collection 0 to 0.03, 0.000500 Graduation, Horizontal Dial Test Dovetail Mount Indicator With Dovetail Mount / Model: 3809MA Starrett Dial Test Indicator 0001 graduation, .010 range, 0-5-0 dial reading and carbide contact point of 13/16 (20mm) length and .078 (2mm) ball diameter, with attachments Balanced dial with continuous clockwise pointer rotation with automatic reversal, and ball-bearing lever system with measuring insert swivels through to 210 degrees The Starrett 708 Dial Test Indicator with Dovetail Mount offers an easy to read angled head and the flexibility of three dovetail mounts. White Dial, .010" Range, .0001" Grad, attachments not included Narrow body for hard to reach areas, carbide contact point, and 1-3/8 diameter face with choice of red, white, or black face