A precision measuring tool for inside diameters, designed to deliver repeatable deep-bore readings. Machinists and workshop engineers gain confidence when setting tolerances and checking cylinder bores. Does XUNTOP Digital Bore Gauge Set meet professional accuracy and durability needs?
⚡ At a Glance
- • Measurement Accuracy: 0.01mm (0.0005") resolution, optical glass sensor ±0.001mm stability, ≤0.5m/s response time
- • Best for: Machinists, CNC operators and automotive engineers needing precise deep-bore measurements
- • Not ideal for: Outside diameter checks or quick rough measurements
High-resolution digital bore gauge covers wide diameter and depth ranges with interchangeable probes. Robust aluminium alloy housing and a backlit LCD support workshop use and repeatable readings.
Repeatable micro-accuracy - thanks to 0.0005 inch resolution and optical sensor
Resolution of 0.01mm (0.0005") combines with an optical glass sensor that maintains ±0.001mm stability, and a ≤0.5m/s response time for rapid reading updates.
Micrometre-level deviations are identified reliably, reducing scrap and rework in machining tasks.
Stable measurements in deep bores - with a rigid Φ8mm shaft and hardened probes
A rigid 8mm shaft and a hardened M2.5mm threaded tip, together with HRC60+ hardened probe elements and two-point contact heads, minimise bending and self-centre on uneven surfaces.
Deep cylinder and spindle checks remain consistent across repeated cycles, helping maintain tolerance control in CNC and automotive inspections.
Versatile coverage and quick setup - with 12 interchangeable probes and zero-setting LCD
The kit includes 12 probe specifications (50-105mm in 5mm steps), quick-change Φ8mm shafts, a high-contrast backlit LCD with mm/inch conversion, and an instant zero-setting function for on-the-fly recalibration.
Operators move between pumps, gearboxes and larger components with minimal downtime, cutting adjustment time during workshop workflows.
✨ The 4 Key Reasons for XUNTOP Digital Bore Gauge Set
- Backlit LCD display - Clear backlit readings in dim workshops, reducing measurement errors.
- Two-point contact probe - Detects ovality and taper, improving fit and alignment checks.
- Hardened M2.5mm threaded tips - Endure heavy use, rated for over 500k cycles.
- Aluminium alloy housing - Impact-resistant body maintains measurement accuracy across typical workshop temperatures.
📋 Technical Details at a Glance
- Measurement Range: 50-160mm (2-6")
- Measuring Depth: 150mm (6")
- Resolution: 0.01mm (0.0005")
- Sensor Stability: ±0.001mm (optical glass sensor)
- Response Time: ≤0.5m/s
❓ Frequently Asked Questions
Q: What diameter and depth ranges does the kit cover?
A: Measurement capability spans 50-160mm in diameter with a measuring depth of 150mm, and the supplied probe set covers 50-105mm in 5mm steps.
Q: How accurate and repeatable are readings?
A: Resolution is 0.01mm (0.0005"), the optical glass sensor holds ±0.001mm stability, and probe tips report ±0.003mm repeatability, with two-point contact detecting ovality to ≤±0.005mm.
Q: Is the gauge suitable for workshop environments and heavy use?
A: An impact-resistant aluminium alloy housing, HRC60+ hardened probes, chrome handle and hardened threaded tips rated for 500k+ cycles make the kit appropriate for routine workshop use, within a 0-40℃ operating range.
🏆 Our Verdict
Perfect for machinists, CNC operators and automotive engineers who need reliable deep-bore measurements. The combination of high-resolution sensing, hardened tips and a rigid shaft delivers stable, repeatable readings and broad probe coverage. While the initial outlay may be significant, durable construction and an interchangeable probe set promise long-term value.
