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Digital Internal Micrometer
The three-point internal micrometer has an automatic centering function and can measure hole diameters with high precision, achieving micrometer-level accuracy.
The internal micrometers with 3 contactors is suitable for precision manufacturing and quality inspection fields.
The wide range internal micrometers feature a unique design, allowing for a very large measurement range.
The internal micrometers with 3 contactors is suitable for precision manufacturing and quality inspection fields.
The wide range internal micrometers feature a unique design, allowing for a very large measurement range.
Digital wide range inside micrometers with 3 contactors
Digital internal micrometers connect to a computer with a data cable
Digital internal micrometers with extension rod
The 3-point internal micrometer is placed in an aluminum alloy packaging box.
Digital wide range internal micrometers Type-A
Range : 50-300mm / 2-12”
Digital internal micrometers Type-A
- Large measuring range due to the patent structure.
- Precision measurement for blind holes and through holes.
- Carbide-tipped contact points.
- Retchet stop.
- Supplied with setting rings.(It is optional over 150mm)
- Protection level IP54.
- Data cables are optional to connect a computer for data processing.
| Range | Accuracy | Setting rings |
| 50-70mm | 0.004mm | φ50mm |
| 70-100mm | 0.004mm | φ70mm |
| 100-150mm | 0.005mm | φ100mm |
| 150-250mm | 0.007mm | φ150mm |
| 200-300mm | 0.007mm | φ200mm Optional |
| 2-2.8" | 0.00016" | 2" |
| 2.8-4" | 0.00016" | 2.8" |
| 4-6" | 0.00020" | 4" |
| 6-10" | 0.00028" | 6" |
| 8-12" | 0.00028" | 8" Optional |
Digital wide range internal micrometers Type-B
Range : 200-1000mm / 8-40”
Digital internal micrometers Type-B
- The measurement range is large due to the patented structure.
- High-precision interchangeable probe, no need to reset after replacement.
- Precision measurement for blind holes and through holes.
- Carbide-tipped contact points.
- Retchet stop.
- Setting rings are optional.
- Protection level IP54.
- Data cables are optional to connect a computer for data processing.
| Range | Accuracy | Setting rings | Interchangeable probe(L) | Extension rods |
|---|---|---|---|---|
| 200-500mm | (1+L/50) μm | 200mm | 3x50mm | 150mm |
| 3x100mm | 500mm | |||
| 200-1000mm | (1+L/50) μm | 200mm | 3x50mm | 150mm |
| 3x100mm | 500mm | |||
| 3x150mm | 1000mm | |||
| 3x200mm | ||||
| 3x250mm | ||||
| 3x300mm | ||||
| 3x350mm | ||||
| 8-20" | 0.00004" | 8" | 3x2" | 6" |
| (1+L/2) " | 3x4" | 20" | ||
| 8-40" | 0.00004" | 8" | 3x2" | 6" |
| (1+L/2) " | 3x4" | 20" | ||
| 3x6" | 40" | |||
| 3x8" | ||||
| 3x10" | ||||
| 3x12" | ||||
| 3x14" |
Digital Internal Micrometer Type-C
Range: 2-6mm / 0.08-0.28”
Digital Internal Micrometer Type-C
- Precision measurement for blind holes and through holes.
- Retchet stop.
- Supplied with setting rings.
- Range 2-6mm / 0.08 – 0.28” is two-point model used for small holes.
- Protection level IP54.
- Data cables are optional to connect a computer for data processing.
| Range | Accuracy | Setting Rings | L |
|---|---|---|---|
| 2-2.5mm / 0.08-0.1" | 0.004mm/0.00016" | φ2.5mm / 0.1” | 12.5mm / 0.5” |
| 2.5-3mm / 0.1-0.12" | 0.004mm/0.00016 | φ2.5mm / 0.1” | 12.5mm / 0.5” |
| 3-4mm / 0.12-0.16" | 0.004mm/0.00016" | φ4mm / 0.16” | 22.5mm / 0.9” |
| 4-5mm / 0.16-0.2" | 0.004mm/0.00016" | φ5mm / 0.16” | 22.5mm / 0.9” |
| 5-6mm / 0.2-0.24" | 0.004mm/0.00016" | φ6mm / 0.24” | 22.5mm / 0.9” |
| 0.24-0.28" | 0.00016" | φ 0.24” | 22.5mm / 0.9” |
Digital Internal Micrometer Type-D
Range: 6-12mm / 0.275-0.5”
Digital Internal Micrometer Type-D
- Precision measurement for blind holes and through holes.
- Retchet stop.
- Supplied with setting rings.
- Protection level IP54.
- Data cables are optional to connect a computer for data processing.
| Range | Accuracy | Setting Rings | L1 | A | Extension rods |
|---|---|---|---|---|---|
| 6-8mm | 0.004mm | φ6mm | 53.5mm | 0.5mm | 100mm |
| 8-10mm | 0.004mm | φ8mm | 53.5mm | 0.5mm | 100mm |
| 10-12mm | 0.004mm | φ10mm | 53.5mm | 0.5mm | 100mm |
| 0.275-0.35" | 0.00016" | 0.275" | 2.14" | 0.02" | 4" |
| 0.35-0.425" | 0.00016" | 0.35" | 2.14" | 0.02" | 4" |
| 0.425-0.5" | 0.00016" | 0.5" | 2.14" | 0.02" | 4" |
Digital Internal Micrometer Type-E
Range: 6-50mm / 0.275 - 2”
Digital Internal Micrometer Type-E
- Precision measurement for blind holes and through holes.
- Carbide-tipped contact points （except 6-12mm）
- Retchet stop.
- Supplied with setting rings.
- Protection level IP54.
- Data cables are optional to connect a computer for data processing.
| Range | Accuracy | Setting Rings | L1 | A | Extension rods |
|---|---|---|---|---|---|
| 6-8mm | 0.004mm | φ6mm | 54.5mm | 1.5mm | 100mm |
| 8-10mm | 0.004mm | φ8mm | 54.5mm | 1.5mm | 100mm |
| 10-12mm | 0.004mm | φ10mm | 54.5mm | 1.5mm | 100mm |
| 12-16mm | 0.004mm | φ16mm | 80mm | 0.5mm | 150mm |
| 16-20mm | 0.004mm | φ16mm | 80mm | 0.5mm | 150mm |
| 20-25mm | 0.004mm | φ25mm | 90mm | 0.5mm | 150mm |
| 25-30mm | 0.004mm | φ25mm | 90mm | 0.5mm | 150mm |
| 30-40mm | 0.004mm | φ40mm | 97mm | 0.5mm | 150mm |
| 40-50mm | 0.005mm | φ40mm | 97mm | 0.5mm | 150mm |
| 0.275-0.35" | 0.00016" | 0.275" | 2.18" | 0.06" | 4" |
| 0.35-0.425" | 0.00016" | 0.35" | 2.18" | 0.06" | 4" |
| 0.425-0.5" | 0.00016" | 0.5" | 2.18" | 0.06" | 4" |
| 0.5-0.65" | 0.00016" | 0.65" | 3.2" | 0.02" | 6" |
| 0.65-0.8" | 0.00016" | 0.65" | 3.2" | 0.02" | 6" |
| 0.8-1" | 0.00016" | 1" | 3.6" | 0.02" | 6" |
| 1-1.2" | 0.00016" | 1" | 3.6" | 0.02" | 6" |
| 1.2-1.6" | 0.00016" | 1.6" | 3.88" | 0.02" | 6" |
| 1.6-2" | 0.0002" | 1.6" | 3.88" | 0.02" | 6" |
Digital Internal Micrometer Type-F
Range: 50-300mm / 2 -12”
Digital Internal Micrometer Type-F
- Precision measurement for blind holes and through holes.
- Supplied with setting rings. (It is optional over φ100mm.)
- Carbide-tipped contact points.
- Retchet stop.
- Aluminum body.
- Protection level IP54.
- Data cables are optional to connect a computer for data processing.
| Range | Accuracy | Setting Rings | L1 | Extension rods |
|---|---|---|---|---|
| 50-63mm | 0.005mm | φ62mm | 114mm | 150mm |
| 62-72mm | 0.005mm | φ62mm | 114mm | 150mm |
| 75-88mm | 0.005mm | φ87mm | 114mm | 150mm |
| 87-100mm | 0.005mm | φ87mm | 114mm | 150mm |
| 100-125mm | 0.005mm | φ100mm | 150mm | 150mm |
| 125-150mm | 0.005mm | φ150mm | 150mm | 150mm |
| 150-175mm | 0.005mm | φ150mm | 150mm | 150mm |
| 175-200mm | 0.005mm | φ200mm | 150mm | 150mm |
| 200-225mm | 0.007mm | φ200mm | 150mm | 150mm |
| 225-250mm | 0.007mm | φ250mm | 150mm | 150mm |
| 250-275mm | 0.007mm | φ250mm | 150mm | 150mm |
| 275-300mm | 0.007mm | φ275mm | 150mm | 150mm |
| 2-2.5" | 0.0002" | 2.5" | 4.56" | 6" |
| 2.5-3" | 0.0002" | 2.5" | 4.56" | 6" |
| 3-3.5" | 0.0002" | 3.5" | 4.56" | 6" |
| 3.5-4" | 0.0002" | 3.5" | 4.56" | 6" |
| 4-5" | 0.0002" | 4" | 6" | 6" |
| 5-6" | 0.0002" | 6" | 6" | 6" |
| 6-7" | 0.0002" | 6" | 6" | 6" |
| 7-8" | 0.0002" | 8" | 6" | 6" |
| 8-9" | 0.00028" | 10" | 6" | 6" |
| 9-10" | 0.00028" | 10" | 6" | 6" |
| 10-11" | 0.00028" | 10" | 6" | 6" |
| 11-12" | 0.00028" | 11" | 6" | 6" |
Digital Internal Micrometer Type-G
Pistol-shaped snap internal micrometer
Range: 6-300mm / 0.275 -12”
Pistol-shaped snap internal micrometer (Dail indicator is optional)
- Can be operated with one hand, and both left and right hands can be used easily.
- Self-centering 3-point, suitable for precise measurement of blind holes or through holes.
- Carbide-tipped contact points(except 6-12mm).
- Supplied with setting rings, it is optional over 100mm.
- Dial indicator is optional, with installation dimensions of φ8mm or 3/8” (φ9.525mm)
| Range | Accuracy | Setting Rings | L | A | Extension rods |
|---|---|---|---|---|---|
| 6-8mm | 0.004mm | φ6mm | 50mm | 1.5mm | 100mm |
| 8-10mm | 0.004mm | φ8mm | 50mm | 1.5mm | 100mm |
| 10-12mm | 0.004mm | φ10mm | 50mm | 1.5mm | 100mm |
| 12-16mm | 0.004mm | φ16mm | 65mm | 0.5mm | 150mm |
| 16-20mm | 0.004mm | φ16mm | 65mm | 0.5mm | 150mm |
| 20-25mm | 0.004mm | φ25mm | 91mm | 0.5mm | 150mm |
| 25-30mm | 0.004mm | φ25mm | 91mm | 0.5mm | 150mm |
| 30-40mm | 0.004mm | φ40mm | 97mm | 0.5mm | 150mm |
| 40-50mm | 0.005mm | φ40mm | 97mm | 0.5mm | 150mm |
| 50-63mm | 0.005mm | φ62mm | 112mm | 0.5mm | 150mm |
| 62-72mm | 0.005mm | φ62mm | 112mm | 0.5mm | 150mm |
| 75-88mm | 0.005mm | φ87mm | 112mm | 0.5mm | 150mm |
| 87-100mm | 0.005mm | φ87mm | 112mm | 0.5mm | 150mm |
| 100-125mm | 0.005mm | φ112.5mm | 130mm | 0.5mm | 150mm |
| 125-150mm | 0.005mm | φ137.5mm | 130mm | 0.5mm | 150mm |
| 150-175mm | 0.005mm | φ162.5mm | 130mm | 0.5mm | 150mm |
| 175-200mm | 0.005mm | φ187.5mm | 130mm | 0.5mm | 150mm |
| 200-225mm | 0.007mm | φ212.5mm | 130mm | 0.5mm | 150mm |
| 225-250mm | 0.007mm | φ237.5mm | 130mm | 0.5mm | 150mm |
| 250-275mm | 0.007mm | φ262.5mm | 130mm | 0.5mm | 150mm |
| 275-300mm | 0.007mm | φ287.5mm | 130mm | 0.5mm | 150mm |
| 0.275-0.35" | 0.00016" | 0.275" | 2" | 0.06" | 4" |
| 0.35-0.425" | 0.00016" | 0.35" | 2" | 0.06" | 4" |
| 0.425-0.5" | 0.00016" | 0.5" | 2" | 0.06" | 4" |
| 0.5-0.65" | 0.00016" | 0.65" | 2.6" | 0.02" | 6" |
| 0.65-0.8" | 0.00016" | 0.65" | 2.6" | 0.02" | 6" |
| 0.8-1" | 0.00016" | 1" | 3.64" | 0.02" | 6" |
| 1-1.2" | 0.00016" | 1" | 3.64" | 0.02" | 6" |
| 1.2-1.6" | 0.00016" | 1.6" | 3.88" | 0.02" | 6" |
| 1.6-2" | 0.0002" | 1.6" | 3.88" | 0.02" | 6" |
| 2-2.5" | 0.0002" | 2.5" | 4.48" | 0.02" | 6" |
| 2.5-3" | 0.0002" | 2.5" | 4.48" | 0.02" | 6" |
| 3-3.5" | 0.0002" | 3.5" | 4.48" | 0.02" | 6" |
| 3.5-4" | 0.0002" | 3.5" | 4.48" | 0.02" | 6" |
| 4-5" | 0.0002" | 4.5" | 5.2" | 0.02" | 6" |
| 5-6" | 0.0002" | 5.5" | 5.2" | 0.02" | 6" |
| 6-7" | 0.0002" | 6.5" | 5.2" | 0.02" | 6" |
| 7-8" | 0.0002" | 7.5" | 5.2" | 0.02" | 6" |
| 8-9" | 0.00028" | 8.5" | 5.2" | 0.02" | 6" |
| 9-10" | 0.00028" | 9.5" | 5.2" | 0.02" | 6" |
| 10-11" | 0.00028" | 10.5" | 5.2" | 0.02" | 6" |
| 11-12" | 0.00028" | 11.5" | 5.2" | 0.02" | 6" |
Digital Internal Micrometer Set
Digital Internal Micrometer Sets
| Range | Individual range | Setting rings | Extension rods |
|---|---|---|---|
| 50-100mm | 50-70, 70-100mm | Ø70mm | 150mm |
| 100-250mm | 100-150, 150-250mm | Ø150mm | 150mm |
| 2-4" | 2-2.8", 2.8-4" | 2.8" | 6" |
| 4-10" | 4-6", 6-10" | 6" | 6" |
| Range | Individual range | Setting rings | Extension rods |
|---|---|---|---|
| 2-3mm | 2-2.5, 2.5-3mm | Ø2.5mm | / |
| 3-6mm | 3-4, 4-5, 5-6mm | Ø4, 5, 6mm | / |
| 0.08-0.12" | 0.08-0.1", 0.1-0.12" | 0.1" | / |
| 0.12-0.28" | 0.12-0.16", 0.16-0.2", 0.2-0.24", 0.24-0.28” | 0.16", 0.24" | / |
| Range | Individual range | Setting rings | A | Extension rods |
|---|---|---|---|---|
| 6-12mm | 6-8, 8-10, 10-12mm | Ø6, 8, 10mm | 0.5mm | 100mm |
| 0.275-0.5" | 0.275-0.35", 0.35-0.425", 0.425-0.5" | 0.275", 0.35",0.5" | 0.02" | 4" |
| Range | Individual range | Setting rings | A | Extension rods |
|---|---|---|---|---|
| 6-12mm | 6-8, 8-10, 10-12mm | Ø6, 8, 10mm | 1.5mm | 100mm |
| 12-20mm | 12-16, 16-20mm | Ø16mm | 0.5mm | 150mm |
| 20-40mm | 20-25, 25-30, 30-40mm | Ø25, 40mm | 0.5mm | 150mm |
| 20-50mm | 20-25, 25-30, 30-40, 40-50mm | Ø25, 40mm | 0.5mm | 150mm |
| 0.275-0.5" | 0.275-0.35", 0.35-0.425", 0.425-0.5" | 0.275", 0.35", 0.5" | 0.06" | 4" |
| 0.5-0.8" | 0.5-0.65", 0.65-0.8" | 0.65" | 0.02" | 6" |
| 0.8-1.6" | 0.8-1", 1-1.2", 1.2-1.6" | 1", 1.6" | 0.02" | 6" |
| 0.8-2" | 0.8-1", 1-1.2", 1.2-1.6", 1.6-2" | 1", 1.6" | 0.02" | 6" |
| Range | Individual range | Setting rings | A | Extension rods |
|---|---|---|---|---|
| 50-100mm | 50-63, 62-75, 75-88, 87-100mm | Ø62, 87mm | 0.5mm | 150mm |
| 2-4" | 2-2.5", 2.5-3", 3-3.5", 3.5-4" | 2.5", 3.5" | 0.02" | 6" |
Pistol-shaped snap internal micrometer set (Dail indicator is optional)
| Range | Individual range | Setting rings | A | Extension rods |
|---|---|---|---|---|
| 6-12mm | 6-8, 8-10, 10-12mm | Ø6, 8, 10mm | 1.5mm | 100mm |
| 12-20mm | 12-16, 16-20mm | Ø16mm | 0.5mm | 150mm |
| 20-50mm | 20-25, 25-30, 30-40,40-50mm | Ø25, 40mm | 0.5mm | 150mm |
| 50-100mm | 50-63, 62-75, 75-88, 87-100mm | Ø62, 87mm | 0.5mm | 150mm |
| 0.275-0.5" | 0.275-0.35", 0.35-0.425", 0.425-0.5" | 0.275", 0.35", 0.5" | 0.06" | 4" |
| 0.5-0.8" | 0.5-0.65", 0.65-0.8" | 0.65" | 0.02" | 6" |
| 0.8-2" | 0.8-1", 1-1.2", 1.2-1.6",1.6-2" | 1", 1.6" | 0.02" | 6" |
| 2-4" | 2-2.5", 2.5-3 ", 3-3.5 ", 3.5-4 " | 2.5", 3.5 " | 0.02" | 6" |
Reference hyperlink: Three point micrometer, Inside micrometer, Inside micrometer caliper,
Internal groove micrometer, Micrometer ring gauge.