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IndIcAtor Holders

657 IndIcAtor Holders A. 657P Magnetic Base. 1-15/16" x 1-5/8" x 1-7/8" (50
x 40 x 48mm) deep. Push button on/off switch for one-
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 hand operation.
tapped hole in one side of base (not shown) for mounting post. B. 657G Upright Base Post. 3/8" (9.5mm) diameter x
IndIca tors and GaGes (graduation 0.01mm, dial reading 0-50-0, range 2.5mm). Other indicators can be D. PT06784-A Gage Holding Rod. 3/8" x 9-1/2"
7-7/16" (190mm) length overall.
Available with or without Starrett AGD Dial Indicators: inch reading 25-131J
C. 657H Swivel Post Snug. Allows universal indicator
(graduation .0005", dial reading 0-25-0, range .125") or millimeter reading 25-181J
adjustment – up-and-down, any vertical angle, for a
complete 360º. Two 3/8" (9.5mm) holes.
furnished on request.
(9.5 x 240mm) with clamping mechanism for
gripping the indicator lug back (see photo below).
E. F. 57S and 58S Universal Snugs. Adapt various scribers

657 Base Holder Assembly and Individual Components and indicator shanks to rods and posts.
Photo Key Cat. No. EDP Description
657D 52749 Magnetic Base, Upright Post Assembly Including Post, Swivel Post Snug and Gage Holding Rod
A 657P 52757 Magnetic Base Only
B 657G 52753 Upright Base Post Only
C 657H 52785 Swivel Post Snug Only
D PT06784-A 52755 Gage Holding Rod with Clamp Mechanism
E 57S 50296 Universal Snug with 5/16" and 3/8" Hole Dia.
F 58S 56613 Universal Snug with 1/4", 5/16" and 3/8" Hole Dia.
Sets Including Magnetic Base, Upright Post Assembly and AGD Dial Indicators
w/Finished Wood Case Without Case
Cat. No. EDP Cat. No. EDP Description
657EZ 52751 657E 52750 Base and Upright Post Assembly with Inch Reading Indicator 25-131J B
657MEZ 56358 657ME 56357 Base and Upright Post Assembly with Millimeter Reading Indicator 25-181J

C

D
E

F

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