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Mitutoyo Series 368 Holtest Three-Point/Two-Point Bore Micrometers (Metric or Inch) - Choice of Model
Description
SERIES 368 - Holtest Three-Point/Two-Point Bore Micrometers
Non-digital 2-point & 3-point Mitutoyo bore micrometers, suitable for measuring the diameter of small holes. Hardened steel contact faces. Ratchet stop guarantees repeatable measurement.
- Ratchet Stop ensures constant-force, repeatable measurement.
- Optional setting rings are available for setting the instrument accurately before measurement.
- Three-point bore micrometer with a measuring range of 6 mm or larger allows stable measurement through automatic centering.
- Can measure deep holes using an Extension rod (optional) which is available on models over 6 mm (.275") measuring range.
- Titanium-coated measuring pins on the three-point type (over 6 mm range models) provide excellent durability and impact resistance and allow the instrument to measure right to the bottom of a blind hole.
Offers
Free Mitutoyo Book with Online Mitutoyo Orders Over £100
This winter when you buy over £100 worth of Mitutoyo products online you’ll receive either a free Mitutoyo Engineers’ Reference Book or a Metrology Handbook depending on the value of your item(s). Available for a limited time or while stocks last, this offer is perfect for metrology professionals and engineers requiring a reference guide complete with conversions, measurement principles, standards, and practices. For further details visit the Mitutoyo Online Offer Free Book Page
Tech Specs
Dimensions
Metric
Two-Point
| SKU | Range | Graduation | Max. permissible error JMPE* |
|---|---|---|---|
| MIT-368-001 | 2 - 2.5 mm | 0.001 mm | ±2 µm (range 2 µm) |
| MIT-368-002 | 2.5 - 3 mm | ||
| MIT-368-003 | 3 - 4 mm | ||
| MIT-368-004 | 4 - 5 mm | ||
| MIT-368-005 | 5 - 6 mm |
Three-Point
| SKU | Range | Graduation | Max. permissible error JMPE* |
|---|---|---|---|
| MIT-368-161 | 6 - 8 mm | 0.001 mm | ±2 µm (range 2 µm) |
| MIT-368-162 | 8 - 10 mm | ||
| MIT-368-163 | 10 - 12 mm | ||
| MIT-368-164 | 12 - 16 mm | 0.005 mm | ±3 µm (range 3 µm) |
| MIT-368-165 | 16 - 20 mm | ||
| MIT-368-166 | 20 - 25 mm | ||
| MIT-368-167 | 25 - 30 mm | ||
| MIT-368-168 | 30 - 40 mm | ||
| MIT-368-169 | 40 - 50 mm | ||
| MIT-368-170 | 50 - 63 mm | ||
| MIT-368-171 | 62 - 75 mm | ±4 µm (range 4 µm) | |
| MIT-368-172 | 75 - 88 mm | ||
| MIT-368-173 | 87 - 100 mm | ||
| MIT-368-174 | 100 - 125 mm | ±5 µm (range 5 µm) | |
| MIT-368-175 | 125 - 150 mm | ||
| MIT-368-176 | 150 - 175 mm | ||
| MIT-368-177 | 175 - 200 mm | ||
| MIT-368-178 | 200 - 225 mm | ±6 µm (range 6 µm) | |
| MIT-368-179 | 225 - 250 mm | ||
| MIT-368-180 | 250 - 275 mm | ||
| MIT-368-181 | 275 - 300 mm | ||
*Accuracy specifications apply to the whole length of the measuring pins, and are given both in terms of the limits of deviation of a measurement and the total width of the deviation range (in parentheses).
Inch
Two-Point
| SKU | Range | Graduation | Max. permissible error JMPE* |
|---|---|---|---|
| MIT-368-021 | .08 - .1" | .0001" | ±.0001" (range .0001") |
| MIT-368-022 | .1 - .12" | ||
| MIT-368-023 | .12 - .16" | ||
| MIT-368-024 | .16 - .2" | ||
| MIT-368-025 | .2 - .24" | ||
| MIT-368-026 | .24 - .28" |
Three-Point
| SKU | Range | Graduation | Max. permissible error JMPE* |
|---|---|---|---|
| MIT-368-261 | .275 - .35" | .0001" | ±.0001" (range .0001") |
| MIT-368-262 | .35 - .425" | ||
| MIT-368-263 | .425 - .5" | ||
| MIT-368-264 | .5 - .65" | .0002" | ±.00015" (range .00015") |
| MIT-368-265 | .65 - .8" | ||
| MIT-368-266 | .8 - 1" | ||
| MIT-368-267 | 1 - 1.2" | ||
| MIT-368-268 | 1.2 - 1.6" | ||
| MIT-368-269 | 1.6 - 2" | ||
| MIT-368-270 | 2 - 2.5" | ||
| MIT-368-271 | 2.5 - 3" | ±.0002" (range .0002") | |
| MIT-368-272 | 3 - 3.5" | ||
| MIT-368-273 | 3.5 - 4" | ||
| MIT-368-274 | 4 - 5" | ±.00025" (range .00025") | |
| MIT-368-275 | 5 - 6" | ||
| MIT-368-276 | 6 - 7" | ||
| MIT-368-277 | 7 - 8" | ||
| MIT-368-278 | 8 - 9" | ±.0003" (range .0003") | |
| MIT-368-279 | 9 - 10" | ||
| MIT-368-280 | 10 - 11" | ||
| MIT-368-281 | 11 - 12" |
*Accuracy specifications apply to the whole length of the measuring pins, and are given both in terms of the limits of deviation of a measurement and the total width of the deviation range (in parentheses).
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Additional Information
| SKU | 368-2P-3P |
|---|
