665 Inspection Holder and Dial Indica tors This is the most versatile dial indicator holder with an extremely stable base (A) that is 8-1/2" (215mm) long x 2-1/4" (57mm) wide at the bottom. It can inspect workpieces on the top surface of the ground base or within a working area defined by the 8" (200mm) upright base post (B) and the 9-1/2" (238mm) long gage-holding rod (C). The base post can be conveniently located anywhere along the 8-1/2" (215mm) T-slot in the base. This tool can be held in a vise or by a bolt in a machine T-slot coming up through one of the two 3/8" (9.5mm) holes in the base and fastening down on the top surface. D. Swivel Post Snug 665D Snug has a .375" (9.5mm) hole for the gage holding rod and a .465" (11.8mm) hole for the upright post. Also comes with the 665L Reducing Bushing (J) that can reduce the .465" (11.8mm) hole to 3/8" (9.5mm). Three very useful inspection combinations can be made by removing the complete swivel post snug and gage holding rod as follows: G. Clamp 665G Take the clamp and put the clamp post into the snug and lock it. Now this combination can be used to clamp the gage holding rod and the indicator into hard-to-reach places for inspecting jigs, fixtures, lining up work on centers and machine tables. The clamp has a 3" (75mm) capacity and a post with an approximately 5-3/4" (145mm) length. The clamp post is .464" (11.8mm) diameter that fits into the regular swivel post snug 665D. Three other clamp post diameter options available – 665G- 3/8 is a 3/8" (9.5mm) diameter clamp post that can be used in the regular swivel post snug 665D with the addition of the 665L reducing bushing. The 665G-5/16 (7.9mm) and 665G-1/4 (6.3mm) can be used with other snugs to hold an indicator. H. Tool Post Holder 665H Put one end of the offset arm into the swivel post snug 665D (with the 665L reducing bushing in it). Then put this rectangular tool post holder 665H onto the other arm. This combination now allows for a good, tight setup in lathe tool posts and other machine setups. I. Offset Arm 665G-1 Another very popular measuring combination is to put the reducing bushing (which is furnished) into the snug and then put one leg of the offset arm into it. Now the tool can be used in a 3/8" (9.5mm) chuck or collet to sweep a large area. 665JZ with 25-131J Indicator Indica tor Holders C D B A Individual Components Key Cat. No. EDP Description A 665A 52783 Base Only B 665B 52784 UprightBasePost.464"x8"(11.8x200mm)withClampMechanism C PT06784-A 52755 Gage Holding Rod 3/8" x 9-1/2" (9.5 x 240mm) with Clamp Mechanism D 665D 52754 Swivel Post Snug with .465" and 3/8" (11.8 and 9.5mm) holes with 665L Reducing Bushing G 665G 52792 Clamp with .464" x 5-3/4" (11.8 x 146mm) Post 665G-1/4 52793 Clamp with 1/4" (6.3mm) Diameter Post 665G-5/16 52794 Clamp with 5/16" (7.9mm) Diameter Post 665G-3/8 52795 Clamp with 3/8" (9.5mm) Diameter Post H 665H 52790 Tool Post Holder Approximately 1" x 7/16" (25 x 11mm) I 665G-1 52789 OffsetArm3/8"(9.5mm)Diameter3"and51/2"(75and140mm)Arms J 665L 52756 Reducing Bushing Only (for Swivel Post Snug) .465" (11.8mm) O.D. .375" (9.5mm) I.D. Inspection Sets with AGD Dial Indicators Cat. No. EDP Description 665JZ 56275 Complete with Components and 25-131J Inch Reading Indicator in Case 665MJZ 56276 Complete with Components and 25-181J Millimeter Reading Indicator in Case 183 starrett.com I ndica tors and G ages