Insize 2429 Split Type Dial Bore Gauges Sets For Blind Holes
The Insize 2429 Split Type Dial Bore Gauge Set series is engineered to measure small-diameter blind holes where standard contact-point gauges can't operate. Each set uses a split-ball contact design that expands to make full contact with the bore wall, delivering accurate readings even at the bottom of a blind bore. The series spans several ranges from as small as 1.5mm up to roughly 20.6mm (with inch-equivalent models such as the 2429-E7D5 and 2429-E20) and each set includes multiple interchangeable measuring points to cover sub-ranges within its rated capacity, making it a strong fit for tool rooms, machine shops, and inspection labs working with small blind bores, bushings, and precision-machined recesses. As with other Insize bore gauges, dial indicators and setting rings are sold separately, giving you the flexibility to pair the gauge set with the readout resolution your application requires.
Key Features
- Split-ball contact point design for accurate measurement inside blind holes
- Set includes multiple interchangeable measuring points to cover sub-ranges within the rated capacity
- Hard chromed contact points for durability and wear resistance
- Compatible with 0.01mm/0.001mm or .001"/.0001"/.00005" graduation dial indicators
- Works with Insize setting rings for accurate calibration before use
- Available across multiple ranges to fit a variety of small blind-hole applications
Specifications
| Specification |
Detail |
| Measurement Ranges Available |
.059 - .811" |
| Typical Accuracy (without indicator) |
3µm (1.5-10mm range); 4µm (10-20.6mm range) |
| Typical Repeatability (without indicator) |
1µm |
| Contact Point Type |
Split-ball, hard chromed |
| Number of Measuring Points per Set |
Typically 6, covering overlapping sub-ranges |
| Compatible Dial Indicator Graduations |
0.01mm, 0.001mm, or .001"/.0001"/.00005" equivalents |
| Compatible Setting Ring |
Insize setting ring, sold separately |
| Application |
Diameter measurement of small blind holes |
Items Included
- Insize split type bore gauge body in the selected range
- Multiple interchangeable measuring points (typically 6) covering sub-ranges within the set
- Fitted storage/carrying case
- Instruction manual
Insize 2429 Split Type Dial Bore Gauges Sets For Blind Holes Data Sheet
