- Titanium-coated measuring pins on the three- point type (over 6mm range models) provide excellent durability and impact resistance and allow the instrument to measure right to the bottom of a blind
- Three-point bore micrometer with measuring range 6mm or longer allows stable measurement through automatic
- Can measure deep holes using an Extension rod (optional) which is available on models over 6mm (.275″) measuring
- Ratchet Stop ensures constant-force, repeatable measurement.
- Setting Rings for accurately setting the instrument are optional. Refer to page C-47 for details.
| Range (mm) | L3 (mm) | L4 (mm) | L5 (mm) |
|---|---|---|---|
| 2 – 6 | — | — | 2 |
| 6 – 12 | 2 or below | — | 2.5 |
| 12 – 20 |
0.3 or below |
5.6 | 3.5 |
| 20 – 30 | 8.3 | 5.2 | |
| 30 – 50 | 13.0 | 10.0 | |
| 50 – 100 | 17.0 | 14.0 | |
| 100 – 300 | 12.4 or below | 21.0 | 13.8 |
SPECIFICATIONS
Metric
| Order No. | Range | Graduation | Accuracy*1 | Extension Rod (optional) |
|---|---|---|---|---|
|
(Two-point) 368-001 |
2 – 2.5mm |
0.001mm |
±2µm (within 2µm) |
— |
| 368-002 | 2.5 – 3mm | |||
| 368-003 | 3 – 4mm | |||
| 368-004 | 4 – 5mm | |||
| 368-005 | 5 – 6mm | |||
|
(Three-point) 368-161 |
6 – 8mm |
952322 (100mm) |
||
| 368-162 | 8 – 10mm | |||
| 368-163 | 10 – 12mm | |||
| 368-164 | 12 – 16mm |
0.005mm |
952621 (150mm) | |
| 368-165 | 16 – 20mm | |||
| 368-166 | 20 – 25mm |
±3µm (within 3µm) |
952622 (150mm) |
|
| 368-167 | 25 – 30mm | |||
| 368-168 | 30 – 40mm | |||
| 368-169 | 40 – 50mm | |||
| 368-170 | 50 – 63mm |
952623 (150mm) |
||
| 368-171 | 62 – 75mm | |||
| 368-172 | 75 – 88mm | |||
| 368-173 | 87 – 100mm | |||
| 368-174 | 100 – 125mm |
±5µm (within 5µm) |
||
| 368-175 | 125 – 150mm | |||
| 368-176 | 150 – 175mm | |||
| 368-177 | 175 – 200mm | |||
| 368-178 | 200 – 225mm | |||
| 368-179 | 225 – 250mm | |||
| 368-180 | 250 – 275mm | |||
| 368-181 | 275 – 300mm |
Inch
| Order No. | Range | Graduation | Accuracy*1 | Extension Rod (optional) |
|---|---|---|---|---|
| (Two-point) 368-021 | .08″ – .1″ |
.0001″ |
±.0001″ (within .0001″) |
— |
| 368-022 | .1″ – .12″ | |||
| 368-023 | .12″ – .16″ | |||
| 368-024 | .16″ – .2″ | |||
| 368-025 | .2″ – .24″ | |||
| 368-026 | .24″ – .28″ | |||
|
(Three-point) 368-261 |
.275″ – .35″ |
952322 (100mm) |
||
| 368-262 | .35″ – .425″ | |||
| 368-263 | .425″ – .5″ | |||
| 368-264 | .5″ – .65″ |
.0002″ |
952621 (150mm) | |
| 368-265 | .65″ – .8″ | |||
| 368-266 | .8″ – 1″ |
±.00015″ (within .00015″) |
952622 (150mm) |
|
| 368-267 | 1″ – 1.2″ | |||
| 368-268 | 1.2″ – 1.6″ | |||
| 368-269 | 1.6″ – 2″ | |||
| 368-270 | 2″ – 2.5″ |
952623 (150mm) |
||
| 368-271 | 2.5″ – 3″ | |||
| 368-272 | 3″ – 3.5″ | |||
| 368-273 | 3.5″ – 4″ | |||
| 368-274 | 4″ – 5″ |
±.00025″ (within .00025″) |
||
| 368-275 | 5″ – 6″ | |||
| 368-276 | 6″ – 7″ | |||
| 368-277 | 7″ – 8″ | |||
| 368-278 | 8″ – 9″ | |||
| 368-279 | 9″ – 10″ | |||
| 368-280 | 10″ – 11″ | |||
| 368-281 | 11″ – 12″ |
*1 Excluding quantizing error.
Accuracy: values measured across the entire measuring face.
Maximum difference: differences between the maximum and minimum values.
* Setting ring and extension rod:
* It is not advisable to use measuring heads other than as supplied as a standard accessory, or widen a measuring range by using any other multiple sub-measuring (The measuring accuracy in such cases is not guaranteed.)
DIMENSIONS
| Range | L2 | L1 |
|---|---|---|
| 2 – 2.5, 2.5 – 3mm | 12 | 103.5 – 104 |
| 3 – 4, 4 – 5, 5 – 6mm | 22 | 113 – 114 |
External appearance differs depending on the measuring range.
| Range | L2 | L1 |
|---|---|---|
| 6 – 8, 8 – 10, 10 – 12mm | 59 | 102 – 104 |
| 12 – 16, 16 – 20mm | 82 | 126 – 130 |
| 20 – 25, 25 – 30mm | 94 | 137 – 142 |
| 30 – 40, 40 – 50mm | 102 | 145 – 155 |
| 50 – 63, 62 – 75, 75 – 88, 87 – 100mm | 105 | 150 – 163 |
|
100 – 125, 125 – 150, 150 – 175, 175 – 200, 200 – 225, 225 – 250, 250 – 275, 275 – 300mm |
161 | 227 – 252 |
External appearance differs depending on the measuring range.
Application using an extension rod
For details of Special-order Products, refer to page C-49.