647 Starrett Dial Comparator Indicator
Product Description
647 & 647M Dial Comparator Indicators
The Starrett 647 Dial Comparator Indicators offer a high degree of security and precision. They are based on a solid and well thought-out construction taking into account the latest technology. They are manufactured by the most up-to-date methods.
Features & Specifications
• Effective non-shock mechanism
• Pinions and shafts of the movement are jeweled
• After removal of the safety cap the adjustment screw on top of the case allows simple and safe zero setting of the instrument over the total measuring range
• A safety cap prevents unintentional turning of the fine adjustment
screws
• Stem and spindle are made of hardened stainless steel
• The measuring spindles are very sensitive on account of their
accurate guides
• Additional overtravel assists with the insertion of workpieces into
the measuring device
• The clear scale is shadow free
• The red tolerance markers are easy to recognize and to set
• Furnished with flat back
Dial Comparator Indicators | ||||||||
Cat. No. |
Range |
Grad. |
Dial Reading |
Accuracy |
Over travel |
Measuring Force |
Stem Dia |
Spindle Thread |
647 |
.004" |
.00005" |
20-0-20 |
DIN 879-1 |
.120" |
1.2N |
3/8" |
#4-48 |
647M |
0.1mm |
0.001mm |
50-0-50 |
DIN 879-1 |
3.0mm |
1.2N |
8mm |
M2.5 x .45 |
Accessories
|
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Part No. |
Description |
|||||||
PT15052 |
Lug-on-Center Back |
|||||||
PT15053 |
Lift Cable |