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Calibration Rods with Calibration Certificate
The included certificate of calibration traceable to NIST states that these rods have passed a test for accuracy. They let you check and set micrometers and other measuring tools. All have insulated plastic handles to minimize heat expansion.
| Lg. | Lg. Tolerance | Dia. | Manufacturer | Manufacturer Model Number | Each | |
| 1" | 0" to 0.0001" | 1/4" | Starrett | 234A-1 | 0000000 | 000000 |
| 2" | 0" to 0.0001" | 1/4" | Starrett | 234A-2 | 0000000 | 000000 |
| 3" | 0" to 0.0001" | 1/4" | Starrett | 234A-3 | 0000000 | 000000 |
| 4" | 0" to 0.0001" | 1/4" | Starrett | 234A-4 | 0000000 | 000000 |
| 5" | 0" to 0.0001" | 1/4" | Starrett | 234A-5 | 0000000 | 000000 |
| 6" | 0" to 0.0001" | 1/4" | Starrett | 234A-6 | 0000000 | 000000 |
| 7" | 0" to 0.0001" | 3/8" | Starrett | 234A-7 | 0000000 | 000000 |
| 8" | 0" to 0.0002" | 3/8" | Starrett | 234A-8 | 0000000 | 000000 |
| 9" | 0" to 0.0002" | 3/8" | Starrett | 234A-9 | 0000000 | 000000 |
| 10" | 0" to 0.0002" | 3/8" | Starrett | 234A-10 | 0000000 | 000000 |
| 11" | 0" to 0.0002" | 3/8" | Starrett | 234A-11 | 0000000 | 000000 |
| 12" | 0" to 0.0002" | 7/16" | Starrett | 234A-12 | 0000000 | 000000 |
| 13" | 0" to 0.0002" | 7/16" | Starrett | 234A-13 | 0000000 | 000000 |
| 14" | 0" to 0.0002" | 7/16" | Starrett | 234A-14 | 0000000 | 000000 |
Calibration Rods
Also known as calibration standards, these rods let you check and set micrometers and other measuring tools. For accuracy, they’re precision ground to extremely tight length tolerances. They have insulated plastic handles to minimize heat expansion.
Sets come with rods of different lengths, making them convenient for checking a range of measuring tools.
Individual Rods
| Lg. | Lg. Tolerance | Dia. | Manufacturer | Manufacturer Model Number | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
| 1" | 0" to 0.0001" | 1/4" | Starrett | 234A-1 | 0000000 | 000000 |
| 2" | 0" to 0.0001" | 1/4" | Starrett | 234A-2 | 0000000 | 00000 |
| 3" | 0" to 0.0001" | 1/4" | Starrett | 234A-3 | 0000000 | 00000 |
| 4" | 0" to 0.0001" | 1/4" | Starrett | 234A-4 | 0000000 | 00000 |
| 5" | 0" to 0.0001" | 1/4" | Starrett | 234A-5 | 0000000 | 00000 |
| 6" | 0" to 0.0001" | 1/4" | Starrett | 234A-6 | 0000000 | 00000 |
Metric | ||||||
| 25mm | 0mm to 0.0013mm | 6.3mm | Starrett | 234MA-25 | 000000000 | 00000 |
| 50mm | 0mm to 0.0025mm | 6.3mm | Starrett | 234MA-50 | 000000000 | 00000 |
| 75mm | 0mm to 0.0025mm | 6.3mm | Starrett | 234MA-75 | 000000000 | 00000 |
| 100mm | 0mm to 0.0025mm | 6.3mm | Starrett | 234MA-100 | 000000000 | 00000 |
| 125mm | 0mm to 0.0025mm | 6.3mm | Starrett | 234MA-125 | 000000000 | 00000 |
| 150mm | 0mm to 0.0025mm | 6.3mm | Starrett | 234MA-150 | 000000000 | 00000 |
| 175mm | 0mm to 0.0032mm | 9.5mm | Starrett | 234MA-175 | 000000000 | 00000 |
| 200mm | 0mm to 0.0032mm | 9.5mm | Starrett | 234MA-200 | 000000000 | 00000 |
Rod Sets
| No. of Pieces | Includes | Manufacturer | Manufacturer Model Number | Each | |
Inch | |||||
|---|---|---|---|---|---|
| 5 | 1" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 2" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 3" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 4" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 5" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. | Starrett | S234E | 000000000 | 0000000 |
| 11 | 1" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 2" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 3" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 4" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 5" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 6" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 7" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 3/8" Dia. 8" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. 9" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. 10" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. 11" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. | Starrett | S234G | 000000000 | 000000 |
| 12 | 12" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 13" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 14" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 15" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 16" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 17" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 18" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 19" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 20" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 21" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 22" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 23" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. | Starrett | S234J | 000000000 | 00000000 |
Precision Alignment Bars for Lathes
Turn straight and true—use these bars to confirm that your lathe headstock and tailstock are right inline. Insert the bar between the centers of your headstock and tailstock, then use a variance indicator (not included) on the bar ends. Any difference will register since the bar ends are precision ground to within 0.0002” of each other.
| Overall Lg. | OD | ID | TIR (Total Indicated Runout) Accuracy | Bar Shape | Material | Features | Each | |
Flange End | ||||||||
|---|---|---|---|---|---|---|---|---|
| 12 1/4" | 1" | 0.201" | 0.0002" | Round | Anodized Aluminum | Hardened Steel Bar Ends | 00000000 | 000000 |