Starrett Test Indicators & Holders

Back-Plunger Dial Test Indicators

No. 650 Series with deep
hole attachment (.200")

No. 651 Series without
deep hole attachment (.200")

These workhorse Starrett Back-Plunger Dial Test Indicators take advantage of AGD (American Gage Design) stem holding fixtures and the great variety of AGD contact points.

This very versatile Starrett test indicator series has the following value-packed features:

Smooth and accurate operation due to their sturdy, basic design
Hardened, stainless steel AGD stem .375" (9.5 mm) diameter
Shank dimension 1/4" (6.3 mm) diameter, 3-3/16" (80 mm) long
No. 650 Indicators have a 3" (75 mm) deep hole attachment that connects directly with the main spindle for positive action.
Attachment is convenient to use when checking internal dimensions of a workpiece while in fixtures or machines. When not needed, the attachment can be easily removed and the hole capped
Starrett No. 651 Indicators are identical to the No. 650 Series except they cannot accept the deep hole attachment
Starrett Nos. 650 and 651 can be used with our No. 670 Hole Attachment and our No. 671 Universal Attachment because of the .375" (9.5 mm) AGD stem diameter
Both models have large 1-11/16" (43 mm) diameter bezels with easy-to-read dial numbers and graduations
Adjustable dials to set zero at any point opposite the hand
Inch reading dials have white faces and millimeter reading dials are yellow
Three different styles of contact points are furnished with each indicator

Starrett Series Nos. 650 and 651 Back-Plunger Dial Test Indicators

Left-to-right: Nos. 650 and 651.

Starrett test indicator with tool post holder and contact point

Indictor with tool post holder and contact point.

650 & 651 Series / Inch Reading

Range	Grad- uation	Dial Reading	With Deep Hole Attach -ment	Without Deep Hole Attach- ment	Description	Catalog No.	Price	Order
.200"	.001"	0-100	X	.	Indicator with 3 Contact Points, 3 Attachments*, in Case	650A1Z	$319.50
		0-100	X	.	Indicator w/ 3 Contact Points Only	650B1	$247.25
		0-50-0	X	.	Indicator with 3 Contact Points, 3 Attachments*, in Case	650A5Z	$319.50
		0-50-0	X	.	Indicator with 3 Contact Points Only	650B5	$247.25
		0-100	.	X	Indicator with 3 Contact Points, 3 Attachments*, in Case	651A1Z	$273.75
		0-100	.	X	Indicator with 3 Contact Points Only	651B1	$200.50
		0-50-0	.	X	Indicator with 3 Contact Points, 3 Attachments*, in Case	651A5Z	$273.75
		0-50-0	.	X	Indicator with 3 Contact Points Only	651B5	$200.50

650M & 651M Series / Millimeter Reading

Range	Grad- uation	Dial Reading	With Deep Hole Attach -ment	Without Deep Hole Attach- ment	Description	Catalog No.	Price	Order
5 mm	0.01 mm	0-100 Yellow Dial Face	X	.	Indicator with 3 Contact Points, 3 Attachments*, in Case	650MA1Z	$319.50
			X	.	Indicator with 3 Contact Points Only	650MB1	$247.25
			.	X	Indicator with 3 Contact Points, 3 Attachments*, in Case	651MA1Z	$273.75
			.	X	Indicator with 3 Contact Points Only	651MB1	$200.50

*Attachments include clamp, tool post holder and snug (PT18718). For detailed description and/or individual ordering of attachments go to Starrett Nos. 650 and 651 Series Indicator Attachments.


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