Engine Rebuilding & Assembly Verification Kit: 0.7-6" Digital Bore Gauge & 28 Thread Checker Set, 23PCS Anvils, 0.0005" Accuracy, Portable Plush Bag, Inch/CM Ruler for Automotive, CNC

★★★★★ 4.4 86 reviews

$134.62
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$134.62
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Management number 210923171 Release Date 2026/04/04 List Price $53.85 Model Number 210923171
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Engineered for professional engine builders and machinists, this kit pairs a high-precision digital bore gauge with a portable thread checker set. Together, they provide the complete dimensional and fastener verification solution—enabling accurate internal cylinder measurement for engine work, alongside quick thread identification to ensure correct nut and bolt selection during assembly and repair.

  • 0.0005” Precision Deep Bore Gauge:XUNTOP digital bore gauge (0.7-6" dia./5-6" depth) delivers 0.0005" resolution & ≤0.5m/s response for micro-deviation checks.Ideal for engine cylinders, hydraulic systems, and aerospace components requiring ultra-precise bore measurements
  • Two-point Contact Probe: XUNTOP cylinder measurement tool features a precision two-point contact design (±0.005mm) with self-centering. Its hardened probe (HRC60+) and chrome-plated handle ensure wear resistance, while the all-metal locking system guarantees stability. Ideal for deep-bore (5"/6") and high-vibration applications
  • High-Contrast LCD & Zero-Setting: The digital bore gauge combines a high-contrast LCD for clear visibility in low-light conditions with instant mm/inch unit conversion, minimizing reading errors across measurement standards. Integrated with zero-setting function for rapid recalibration at any position, it eliminates manual adjustments and reduces operator fatigue
  • Nut and Bolt Thread Checker:XUNTOP thread checker can recognize 28 different sizes (14 metric sizes and 14 imperial sizes), including metric thread sizes from M4 x 0.7 to M14 x 2.0, and imperial thread sizes from # 6-32 coarse threads to 1/2-20 fine threads.This comprehensive coverage makes sure that you'll always have the right tool for any project, eliminating the inconvenience of multiple trips to the hardware store
  • Fast and Accurate Checking:All pillars of the thread bolt measuring tool have been machined with high precision to meet the standard requirements.And it comes with long-lasting, easy-to-read precision laser-etched marks for clear and accurate identification of thread sizes, which ensures accurate measurement processes.It can be widely used in home workshops, garages and hardware stores

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