No. 657 Series Base has three precision ground, magnetic contact surfaces. Grips horizontally, vertically or upside down. V-step holds base to round surfaces. Extra 1/4-20 tapped hole in one side of base (not shown) for mounting post. Available with or without Starrett AGD Dial Indicators: inch reading No. 25-131J (graduation .0005”, dial reading 0-25-0, range .125”) or millimeter reading No. 25-181J (graduation 0.01 mm, dial reading 0-50-0, range 2.5 mm). Other indicators can be furnished on request. A. No. 657P Magnetic Base - 1.15/16” x 1.5/8” x 1.7/8” (50 x 40 x 48 mm) deep. Push button on/off switch for one-hand operation. B. No. 657G Upright Base Post -3/8” (9.5 mm) diameter x 7.7/16” (190 mm) length overall. C. No. 657H Swivel Post Snug - Allows universal indicator adjustment - up-and-down, any vertical angle, for a complete 360°. Two 3/8” (9.5 mm) holes. D. No. PT06784-A Gage Holding Rod - 3/8” x 9.1/2” (9.5 x 240 mm) with clamping mechanism for gripping the indicator lug back (see photo below). E. and F. Nos. 57S and 58S Universal Snugs - Adapt various scribers and indicator shanks to rods and posts. Base Holder Assembly and Individual Components Clamp mechanism grips indicator lug back. Heavy-Duty Magnetic Base Indicator Holder with Rotary on/off switch. Furnished with or without Starrett AGD Dial Indicators No. 659 Series Sets, Including Magnetic Base, Upright Post Assembly and AGD Dial Indicators A*. A great variety of mechanical AGD indicators and electronic indicators, Nos. 2600 and 2700 Series, are available on request. D*. Swivel Post Snug No. 665D Snug has a .375” (9.5 mm) hole for the gage holding rod and a .465” (11.8 mm) hole for the upright post. Also comes with the No. 665L Reducing Bushing that can reduce the .465” (11.8 mm) hole to 3/8” (9.5 mm). E. Base Reference Guide No. 665E (Optional) - Guide is used to check parts or surfaces from straight or angular surfaces by use of the radiused guide stop. This fits into the T-slot in the bottom of the base and is fastened at right angles to the length. Push up to a radius surface or slide along a radius surface. F. Square Keyway Guide No. 665F (Optional) - This guide can also be referenced from a square edge, a T-slot or a keyway with at least a ½” (12.7 mm) width. Has square edges and is fastened at right angles to the length. This holder has a powerful magnetic base that attaches to flat surfaces or on round work up to 5” (125 mm) in diameter by a form-ground involute vee for accurate seating. It has approximately twice the holding power of our No. 657 Magnetic Base and has a rotary on/off switch. A post snug with two 3/4” (19mm) gripping holes positions the dial indicator at any height and at any vertical angle and allows for 360° rotation of the gage rod. After locking the gage in place, the final indicator setting is made by an independent fine adjustment at the back end of the gage rod. A second tapped hole (3/8”-24) in one side of the base is for mounting the post horizontally or adding another post for multiple inspection work. The base is furnished with a threaded adaptor, making it possible to use the No. 657 Series Magnetic Base post and attachments. Base and snug have a black wrinkle finish with precision ground contact surfaces. Available with or without Starrett AGD Dial Indicators: Inch reading No. 25-131J (.0005” graduation) or millimeter reading No. 25-181J (0.01 mm graduation). Other mechanical AGD indicators are available on request. Electronic indicators, Nos. 2600 and 2700 Series, are also available on request. Both the upright post and the gage rod are approximately 9.3/8” (238 mm) long and 3/4” (19 mm) in diameter. Sets, Including Magnetic Base, Upright Post Assembly and AGD Dial Indicators Inspection Holder and Starrett AGD Dial Indicators No. 665 Series H*. Tool post Holder No. 665H Put one end of the offset arm into the swivel post snug No. 665D (with the No. 665L reducing bushing in it). Then put this rectangular tool post holder No. 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 No. 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” (9.5 mm) chuck or collet to sweep a large area. J*. Reducing Bushing No. 665L Bushing has a .465” (11.8 mm) OD and a .375” (9.5 mm) ID. Push up to a square edge or slide along a square edge. There are three very useful inspection combinations that can be made by removing the complete swivel post snug and gage holding rod and using them as follows: G*.Clamp No.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” (75 mm) capacity and a post with an approximately 5.3/4” (145 mm) length. The clamp post is .464” (11.8 mm) diameter that fits into the regular swivel post snug No. 665D. There are three other clamp post diameter options available - No. 665G-3/8 is a 3/8” (9.5 mm) diameter clamp post that can be used in the regular swivel post snug No. 665D with the addition of the No. 665L reducing bushing. The Nos 665G-5/16 (7.9 mm) and 665G-1/4 (6.3 mm) can be used with other snugs to hold an indicator. This is the most versatile dial indicator holder with an extremely stable base (A) that is 8.1/2” (215 mm) long x 2.1/4” (57 mm) 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” (200 mm) upright base post (B) and the 9.1/2” (238 mm) long gage-holding rod (C)The base post can be INSPECTION SETS conveniently located anywhere along the 8.1/2” (215 mm) 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” (9.5 mm) holes in the base and fastening down on the top surface. No. 665JZ with No. 25-131J Indicator MAGNETIC BASES DESCRIPTION CATALOG NO. PART# 1-STR Magnetic Base, Upright Post Assembly Including Post, Snug, Gage Rod with Clamp and Fine Adjustment, and Thread Adaptor, without Case 659A 56687 Complete Assembly (Above) in Case 659AZ 55947 *Swivel Post Snug with Two ¾” Holes. CATALOG NO. PART# 1-STR- P 659P 55949 G 659G 56688 H* PT16846 71597 J PT08903 72032 PT18318 72040 DESCRIPTION CATALOG NO. PART# 1-STR Base and Upright Post Assembly with Inch Reading Indicator No. 25-131J in Case 659BZ 55948 Base and Upright Post Assembly with Millimeter Reading Indicator No. 25-181J in Case 659MBZ 64892 PHOTO KEY DESCRIPTION CATALOG NO. PART# 1-STR- Magnetic Base, Upright Post Assembly including Post, Swivel Post Snug and Gage Holding Rod. 657D 52749 A Magnetic Base Only 657P 52757 B Upright Base Post Only 657G 52753 C Swivel Post Snug Only 657H 52785 D Gage Holding Rod with Clamp Mechanism PT06784-A 52755 E Universal Snug with 5/16” and 3/8” Hole Dia. 57S 50296 F Universal Snug with ¼”, 5/16” and 3/8” Hole Dia. 58S 56613 DESCRIPTION W/FINISHED WOOD CASE WITHOUT CASE CATALOG NO. PART# 1-STR CATALOG NO. PART# 1-STR Base and Upright Post Assembly with Inch Reading Indicator No. 25-131J 657EZ 52751 657E 52750 Base and Upright Post Assembly with Millimeter Reading Indicator No. 25-181J 657MEZ 56358 657ME 56357 DESCRIPTION CATALOG NO. PART# 1-STR Complete with Components* and No. 25-131J Inch Reading Indicator in Case 665JZ 56275 Complete with Components* and No. 25-181J Millimeter Reading Indicator in Case 665MJZ 56276 - 1218 - Bass Tool & Supply, Inc. Houston Email Fax Toll Free www.basstool.com (713) 682-1889 [email protected] (713) 681-4931 800-442-0042
