The Mitutoyo mechanical Holtest internal micrometer features three hardened-steel anvils evenly spaced at 120° for true alignment of the axis bore for accurate, easily repeatable measurements. Contact points are coated with Titanium Nitride (TiN)* for added durability and precision. The holtest»s ratchet stop mechanism provides a constant measuring force on the hardened-steel spindle to ensure accurate, even measurements.
- Available in Metric and Inch models
- Optional extension rod allows for measuring deep holes
- Optional setting rings for zero point adjustment are available
- Scale on thimble and sleeve is laser etched for easier reading in all conditions
- Holtests up to 100mm / 4″ diameter measurements supplied in a fitted plastic case
- Holtests over 100mm / 4″ diameter measurements supplied in a wooden case
* Models under 5-6mm / .24-.28″ are carbide
Order No.: | Product Image: | Units: | Range: | Graduation: | Accuracy: | Mass: | Contact Point: | Measuring Method: | Extension Rod (Optional): | |
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368-001 | — | Metric | 2 — 2.5mm | 0.001mm | ±2µm | 88g | Carbide | Two-Point method | — |
368-002 | — | Metric | 2.5 — 3mm | 0.001mm | ±2µm | 88g | Carbide | Two-Point method | — |
368-003 | — | Metric | 3 — 4mm | 0.001mm | ±2µm | 91g | Carbide | Two-Point method | — |
368-004 | — | Metric | 4 — 5mm | 0.001mm | ±2µm | 91g | Carbide | Two-Point method | — |
368-005 | — | Metric | 5 — 6mm | 0.001mm | ±2µm | 91g | Carbide | Two-Point method | — |
368-021 | — | Inch | .08-0.1″ | 0.0001″ | ±0.0001″ | 88g | Carbide | Two-Point method | — |
368-022 | — | Inch | 1-0.12″ | 0.0001″ | ±0.0001″ | 88g | Carbide | Two-Point method | — |
368-023 | ![]() | Inch | 12-0.16″ | 0.0001″ | ±0.0001″ | 91g | Carbide | Two-Point method | — |
368-024 | ![]() | Inch | 16-0.2″ | 0.0001″ | ±0.0001″ | 91g | Carbide | Two-Point method | — |
368-025 | ![]() | Inch | 2-0.24″ | 0.0001″ | ±0.0001″ | 91g | Carbide | Two-Point method | — |
368-026 | ![]() | Inch | 24-0.28″ | 0.0001″ | ±0.0001″ | 91g | Carbide | Two-Point method | — |
368-161 | — | Metric | 6 — 8mm | 0.001mm | ±3µm | 57g | TiN coating | Three-point method | 952322 |
368-162 | — | Metric | 8 — 10mm | 0.001mm | ±3µm | 58g | TiN coating | Three-point method | 952322 |
368-163 | — | Metric | 10 — 12mm | 0.001mm | ±3µm | 59g | TiN coating | Three-point method | 952322 |
368-164 | — | Metric | 12 — 16mm | 0.005mm | ±3µm | 140g | TiN coating | Three-point method | 952621 |
368-165 | — | Metric | 16 — 20mm | 0.005mm | ±3µm | 145g | TiN coating | Three-point method | 952621 |
368-166 | — | Metric | 20 — 25mm | 0.005mm | ±3µm | 250g | TiN coating | Three-point method | 962622 |
368-167 | — | Metric | 25 — 30mm | 0.005mm | ±3µm | 270g | TiN coating | Three-point method | 962622 |
368-168 | ![]() | Metric | 30 — 40mm | 0.005mm | ±3µm | 290g | TiN coating | Three-point method | 962622 |
368-169 | — | Metric | 40 — 50mm | 0.005mm | ±3µm | 330g | TiN coating | Three-point method | 962622 |
368-170 | — | Metric | 50 — 63mm | 0.005mm | ±3µm | 440g | TiN coating | Three-point method | 952623 |
368-171 | — | Metric | 62 — 75mm | 0.005mm | ±4µm | 450g | TiN coating | Three-point method | 952623 |
368-172 | — | Metric | 75 — 88mm | 0.005mm | ±4µm | 490g | TiN coating | Three-point method | 952623 |
368-173 | — | Metric | 87 — 100mm | 0.005mm | ±4µm | 500g | TiN coating | Three-point method | 952623 |
368-174 |  | Metric | 100 — 125mm | 0.005mm | ±5µm | 1050g | TiN coating | Three-point method | 952623 |
368-175 | — | Metric | 125 — 150mm | 0.005mm | ±5µm | 1120g | TiN coating | Three-point method | 952623 |
368-176 | — | Metric | 150 — 175mm | 0.005mm | ±5µm | 1190g | TiN coating | Three-point method | 952623 |
368-177 | — | Metric | 175 — 200mm | 0.005mm | ±5µm | 1260g | TiN coating | Three-point method | 952623 |
368-178 | — | Metric | 200 — 225mm | 0.005mm | ±6µm | 1420g | TiN coating | Three-point method | 952623 |
368-179 | — | Metric | 225 — 250mm | 0.005mm | ±6µm | 1580g | TiN coating | Three-point method | 952623 |
368-180 | — | Metric | 250 — 275mm | 0.005mm | ±6µm | 1600g | TiN coating | Three-point method | 952623 |
368-181 | — | Metric | 275 — 300mm | 0.005mm | ±6µm | 1690g | TiN coating | Three-point method | 952623 |
368-261 | — | Inch | .275-0.35″ | 0.0001″ | ±0.0001″ | 57g | TiN coating | Three-point method | 952322 |
368-262 | — | Inch | 35-0.425″ | 0.0001″ | ±0.0001″ | 58g | TiN coating | Three-point method | 952322 |
368-263 | — | Inch | .425-0.5″ | 0.0001″ | ±0.0001″ | 59g | TiN coating | Three-point method | 952322 |
368-264 | ![]() | Inch | 5-0.65″ | 0.0002″ | ±0.00015″ | 140g | TiN coating | Three-point method | 952621 |
368-265 | ![]() | Inch | .65-0.8″ | 0.0002″ | ±0.00015″ | 145g | TiN coating | Three-point method | 952621 |
368-266 | — | Inch | 8-1″ | 0.0002″ | ±0.00015″ | 250g | TiN coating | Three-point method | 962622 |
368-267 | — | Inch | 1-1.2″ | 0.0002″ | ±0.00015″ | 270g | TiN coating | Three-point method | 962622 |
368-268 | — | Inch | 1.2-1.6″ | 0.0002″ | ±0.00015″ | 290g | TiN coating | Three-point method | 962622 |
368-269 | — | Inch | 1.6-2″ | 0.0002″ | ±0.00015″ | 330g | TiN coating | Three-point method | 962622 |
368-270 | — | Inch | 2-2.5″ | 0.0002″ | ±0.00015″ | 440g | TiN coating | Three-point method | 952623 |
368-001 |
368-002 |
368-003 |
368-004 |
368-005 |
368-021 |
368-022 |
368-023 |
368-024 |
368-025 |
368-026 |
368-161 |
368-162 |
368-163 |
368-164 |
368-165 |
368-166 |
368-167 |
368-168 |
368-169 |
368-170 |
368-171 |
368-172 |
368-173 |
368-174 |
368-175 |
368-176 |
368-177 |
368-178 |
368-179 |
368-180 |
368-181 |
368-261 |
368-262 |
368-263 |
368-264 |
368-265 |
368-266 |
368-267 |
368-268 |
368-269 |
368-270 |
Технические характеристики
Technology: | Mechanical |
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Ratchet/Thimble: | Ratchet Stop |
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