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Starrett - Product Navigation
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Starrett - Outside Micrometers Special Functions
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Micrometer Ball Attachments - No. 247, 247M Series
Inch (Metric) |
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Starrett outside micrometers and micrometer heads having spindle sizes listed below can be instantly converted for measuring wall thickness of tubing, split and full bearings, sleeves, and other parts with rounded surfaces by means of the No. 247 Ball Attachment.
Features
- Easily applied by snapping on to end of either anvil or spindle, thus permitting two attachments to be used together
- Balls are hardened, measure .200" and 5 mm in diameter, and move freely in the retainer, insuring positive contact with anvil and spindle.
- The diameters, .200" or 5 mm, of each ball used must be subtracted from the micrometer reading
Micrometer Ball Attachments
No. 247 Series - Range: inch
No. 247M Series - Range: mm
Range: Inch
| Catalog No. |
EDP No. |
Description |
List price |
| 247A |
51174 |
.235" Diameter Anvils |
9.10 |
| 247B |
51175 |
.270" Diameter Anvils |
9.10 |
| 247C |
51176 |
.200" Diameter Anvils |
9.10 |
| 247D |
51177 |
.250" Diameter Anvils |
9.10 |
| 247E |
51178 |
.300" Diameter Anvils |
9.10 |
| 247MA |
51179 |
6mm Diameter Anvils |
9.10 |
Range: Metric
| Catalog No. |
EDP No. |
Description |
List price |
| 247MB |
51180 |
6.8mm Diameter Anvils |
9.10 |
| 247MD |
56691 |
6.35mm Diameter Anvils |
9.10 |
| 247ME |
56692 |
7.6mm Diameter Anvils |
9.10 |
J.W. Donchin Co.
 Ph: 773-261-2182 • Fax: 773-261-2867 • Email: sales@jwdonchin.com
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