Insize 3225 Tubular Inside Micrometers
The Insize 3225 Tubular Inside Micrometer series is built for measuring large internal diameters, using a 1" travel micrometer head paired with a full set of extension rods. Inch models cover ranges from 4"-20" up to 4"-84", while metric models extend from 100mm up to 2100mm, giving you a wide selection to match your application. As the measuring range increases, additional extension rods are supplied to reach the full capacity of each model. Each unit features carbide measuring faces for long-lasting durability and comes supplied with setting standards, making the 3225 series a practical choice for machine shops, fabrication facilities, and inspection labs that regularly measure large bores, cylinders, and tanks.
Key Features
- 1" travel micrometer head paired with extension rods for large-diameter measurement
- Carbide measuring faces for long-lasting durability and consistent accuracy
- Supplied with setting standards for accurate calibration
- Available in ranges from 4"-20" up to 4"-84" (100-2100mm metric equivalents)
- Additional extension rods supplied as range increases to reach full measuring capacity
- Furnished in a fitted storage case to keep rods and standards organized
Specifications
| Specification |
Detail |
| Measurement Ranges Available |
4"-20", 4"-36", 4"-52", 4"-84" (inch); 100-125mm, 100-500mm, 100-900mm, 100-1300mm, 100-1700mm, 100-2100mm (metric) |
| Graduation |
.001" (inch models); 0.01mm (metric models) |
| Accuracy |
[.00005(3+n+L/2)]", n = number of rods, L = maximum measuring length (inch); (3+n+L/50)µm for metric models |
| Micrometer Head Travel |
1" (inch models); 25mm (metric models, head size 100-125mm) |
| Extension Rods Included |
Varies by range (e.g., 1", 2", 4", 8" for the 4"-20" model; additional rods added for larger ranges) |
| Measuring Face Material |
Carbide |
| Setting Standard |
Included |
Items Included
- Insize 3225 tubular inside micrometer head in the selected range
- Extension rods (quantity varies by range)
- Setting standards
- Fitted storage case
- Instruction manual
Insize 3225 Tubular Inside Micrometers Data Sheet
