1/64" (1.6) 27/64" (12) 1-7/8" (47.6) 5/16" (24) 6-7/8" (175) 1/4" (6.4) 5-3/4" (146.0) .375" (9.5) 45º BEND CLAMPING SCREW BACK PLATE 15/16" (23.8) 9/32 x 13/32" C'BORE (2) 1-9/16" (39.7) 5/8" ±.005 (15.9) 9/16" (14.3) TRAVEL Plus Range 9/16" (14.3) 35/64" (14) 7/8" (22) 1-5/8" (41) 1.000" ±.005 (25) 2.000" (50.8) Special Indica tor Backs 674 Backs with Adjust able Mounting Bracket For use with gages and gaging fixtures where an adjustable indicator mounting is required. A dovetail with rack and pinion adjustment provides 1-1/8" (28mm) indicator travel. A 1/8" hex wrench is used to adjust and lock the indicator in final position. The bracket has two counter- bored mounting holes (for 1/4" socket head screws), and the back has four screw holes so the indicator back can be rotated. 672 Universal Backs Featuring a universal ball joint attached to the end of a gooseneck shank,these attachments make it possible to position anAGD indicator at any desired setting.The indicator can be rotated 360º and angularly up to 90º and locked in the desired position by tightening a single knurled nut. Straight shank is 3/8" (9.5mm) in diameter. Indica tor Backs 676 Magnetic Backs These magnetic backs provide a quick and easy means of attaching any Starrett AGD indicator to flat, ferrous metal surfaces. A real time- saver for machine, jig and fixture set up. Requires no clamps, rods or snugs.A special 5/16"-24 threaded stud back is provided to replace the standard lug back. The powerful, permanent magnet is then attached to the threaded stud. Anti-magnetic indicators are not required. 676 Magnetic Backs Cat. No. EDP Fits Starrett Models 676-1 56647 81 676-2 56648 25, 2600, 2900 676-3 56649 655 676-4 56650 656 674BackswithAdjustableMountingBracket Cat. No. EDP Fits Starrett Models 674-1 66374 81 674-2 52892 25, 2600, 2900 674-3 52893 655 674-4 52894 656 672 Universal Backs Cat. No. EDP Fits Starrett Models 672-2 52887 25, 2600, 2900 672-3 52888 655 672-4 52889 656 676-2 672-2 674-2 163 starrett.com I ndica tors and G ages