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Are you looking for a high-precision, digital, wide-range, three-point internal micrometer designed to measure internal diameters between 2.0″ and 2.8″ (51 – 71 mm)? The INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer is has a self-centering three-point contact design, this micrometer delivers consistent and repeatable measurements, eliminating common errors from two-point measurements. Rugged yet refined, it’s built with carbide measuring faces and rated to IP54, making it well suited for industrial environments where dust and splash resistance matters. Its digital readout, data output capabilities, and automatic power-off feature maximize usability and efficiency for metrology labs, machine shops, and quality control operations.
| Model | 3128-28 |
| Measuring Range | 2.0″ – 2.8″ / 51 – 71 mm |
| Resolution | 0.00005″ / 0.001 mm |
| Accuracy | ±0.00020″ (per manufacturer) |
| Contact Material | Carbide measuring faces |
| Load Mechanism | Ratchet stop for uniform force |
| Protection Rating | IP54 (dust-proof, splash-proof) |
| Battery | LR44 (supplied) |
| Display | LCD digital readout |
| Data Output | Yes (cabled) |
| Functions | ABS/INC, inch/mm conversion, set, on/off |
| Standards | Meets DIN 863-4 (per spec sheet) |
Insize 3128-28 Digital Wide Range Three Points Internal Micrometer Manual
Shipping is FREE on all orders under 70 pounds shipped to the continental USA.
Freight shipping will be charged on larger, heavier items.
Shipping is FREE on all orders under 70 pounds shipped to the continental USA.
Freight shipping will be charged on larger, heavier items.
Price Match Guarantee.
Best prices online guaranteed.
30 Day Easy Returns.
Se Habla Español - Falamos Português
We will beat ANY price found online! Reach out to us for more information by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com.
Free 30 day returns! We pride ourselves in helping you with your needs Please reach out by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com to start your return.
Enjoy flexible payment options with Affirm. Split your purchase into easy, interest-free installments or choose a financing plan that fits your budget — all available directly at checkout.
Are you looking for a high-precision, digital, wide-range, three-point internal micrometer designed to measure internal diameters between 2.0″ and 2.8″ (51 – 71 mm)? The INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer is has a self-centering three-point contact design, this micrometer delivers consistent and repeatable measurements, eliminating common errors from two-point measurements. Rugged yet refined, it’s built with carbide measuring faces and rated to IP54, making it well suited for industrial environments where dust and splash resistance matters. Its digital readout, data output capabilities, and automatic power-off feature maximize usability and efficiency for metrology labs, machine shops, and quality control operations.
| Model | 3128-28 |
| Measuring Range | 2.0″ – 2.8″ / 51 – 71 mm |
| Resolution | 0.00005″ / 0.001 mm |
| Accuracy | ±0.00020″ (per manufacturer) |
| Contact Material | Carbide measuring faces |
| Load Mechanism | Ratchet stop for uniform force |
| Protection Rating | IP54 (dust-proof, splash-proof) |
| Battery | LR44 (supplied) |
| Display | LCD digital readout |
| Data Output | Yes (cabled) |
| Functions | ABS/INC, inch/mm conversion, set, on/off |
| Standards | Meets DIN 863-4 (per spec sheet) |
Insize 3128-28 Digital Wide Range Three Points Internal Micrometer Manual
Shipping is FREE on all orders under 70 pounds shipped to the continental USA.
Freight shipping will be charged on larger, heavier items.
Shipping is FREE on all orders under 70 pounds shipped to the continental USA.
Freight shipping will be charged on larger, heavier items.
Price Match Guarantee.
Best prices online guaranteed.
30 Day Easy Returns.
Se Habla Español - Falamos Português
We will beat ANY price found online! Reach out to us for more information by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com.
Free 30 day returns! We pride ourselves in helping you with your needs Please reach out by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com to start your return.
Enjoy flexible payment options with Affirm. Split your purchase into easy, interest-free installments or choose a financing plan that fits your budget — all available directly at checkout.
