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MITUTOYO SERIES 368 HOLTEST (TYPE LL)
Three-Point Internal Micrometers
FEATURES
- The Holtests (type II) have three contact points made of alloy steel.
- Measurement can be taken closer to the bottom of the blind bore (up to 100mm / 4”models).
- Measure deep holes using an extension rod (optional).
- With Ratchet Stop for constant force.
- Setting rings for origin point settings are optional.
- Supplied in fitted plastic case up to 100mm / 4”. Over 100mm / 4” supplied in wooden case.
Download: Mitutoyo Series 368 Data Sheet
SPECIFICATIONS
Metric Individual
| Range | Order No. | Accuracy |
| 12 – 16mm | 368-764 | ±2µm |
| 16 – 20mm | 368-765 | ±2µm |
| 20 – 25mm | 368-766 | ±3µm |
| 25 – 30mm | 368-767 | ±3µm |
| 30 – 40mm | 368-768 | ±3µm |
| 40 – 50mm | 368-769 | ±3µm |
| 50 – 63mm | 368-770 | ±3µm |
| 62 – 75mm | 368-771 | ±3µm |
| 75 – 88mm | 368-772 | ±3µm |
| 87 – 100mm | 368-773 | ±3µm |
| 100 – 125mm | 368-774 | ±5µm |
| 125 – 150mm | 368-775 | ±5µm |
| 150 – 175mm | 368-776 | ±5µm |
| 175 – 200mm | 368-777 | ±5µm |
| 200 – 225mm | 368-778 | ±5µm |
| 225 – 250mm | 368-779 | ±5µm |
| 250 – 275mm | 368-780 | ±5µm |
| 275 – 300mm | 368-781 | ±5µm |
Inch Individual
| Range | Order No. | Accuracy |
| .5 – .65″ | 368-864 | ±.0001″ |
| .65 – .8″ | 368-865 | ±.0001″ |
| .8 – 1″ | 368-866 | ±.00015″ |
| 1 – 1.2″ | 368-867 | ±.00015″ |
| 1.2 – 1.6″ | 368-868 | ±.00015″ |
| 1.6 – 2″ | 368-869 | ±.00015″ |
| 2 – 2.5″ | 368-870 | ±.00015″ |
| 2.5 – 3″ | 368-871 | ±.00015″ |
| 3 – 3.5″ | 368-872 | ±.00015″ |
| 3.5 – 4″ | 368-873 | ±.00015″ |
| 4 – 5″ | 368-874 | ±.00025″ |
| 5 – 6″ | 368-875 | ±.00025″ |
| 6 – 7″ | 368-876 | ±.00025″ |
| 7 – 8″ | 368-877 | ±.00025″ |
| 8 – 9″ | 368-878 | ±.00025″ |
| 9 – 10″ | 368-879 | ±.00025″ |
| 10 – 11″ | 368-880 | ±.00025″ |
| 11 – 12″ | 368-881 | ±.00025″ |
Complete Unit Set
Each set includes complete gages (micrometer head units and measuring heads for each size).
Metric
| Range | Order No. | Individual range | Setting rings included | Remarks |
| 12 – 20mm | 368-991 | 12-16, 16-20mm | ø16mm | with extension rod |
| 20 – 50mm | 368-992 | 20-25, 25-30, 30-40, 40-50mm | ø25mm, ø40mm | with extension rod |
| 50 – 100mm | 368-993 | 50-63, 62-75, 75-88, 87-100mm | ø62mm, ø87mm | with extension rod |
| 100 – 200mm | 368-994 | 100-125, 125-150, 150-175, 175-200mm | ø125mm, ø175mm | with extension rod |
Inch
| Range | Order No. | Individual range | Setting rings included | Remarks |
| .5″ – .8″ | 368-995 | .5-.65″, .65-.8″ | .65″ DIA. | with extension rod |
| .8″ – 2″ | 368-996 | .8-1″, 1-1.2″, 1.2-1.6″, 1.6-2″ | 1″ DIA., 1.6″ DIA. | with extension rod |
| 2″ – 4″ | 368-997 | 2-2.5″, 2.5-3″, 3-3.5″, 3.5-4″ | 2.5″ DIA., 3.5″ DIA. | with extension rod |
| 4″ – 8″ | 368-998 | 4-5″, 5-6″, 6-7″, 7-8″ | 5″ DIA., 7″ DIA. | with extension rod |
| Brand | MITUTOYO |
|---|
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