Machinist Bundle: Digital Bore Gauge 2-6" & 25K RPM Pneumatic Die Grinder, 0.0005" Accuracy, After-Exhaust, Dual Collets, Cylinder Measure & Polish

Engineered for machinists and engine builders, this set teams a high-accuracy Digital Bore Gauge (2-6") with a 25 000 RPM Pneumatic Die Grinder. Measure cylinder diameters precisely, then deburr and polish ports or edges without tool changes—boosting accuracy, speed, and finish quality in one workflow.

• 0.0005” Precision Deep Bore Gauge : XUNTOP digital bore gauge covers 50-160mm (2-6") diameter and 150mm (6") depth,delivering ≤0.5m/s response time and 0.01mm (0.0005") resolution for rapid detection of micro deviations. Its anti-corrosion copper sleeve integrates a hardened M2.5mm (0.098") threaded tip (500k+ cycles) and optical glass sensor (±0.001mm stability), paired with a rigid Φ8mm (0.31") shaft to minimize bending, ensuring long-term accuracy in demanding environments
• Two-point contact probe:XUNTOP bore gauge’s two-point contact design detects ovality/taper (≤±0.005mm) while self-centering heads self-align on uneven surfaces. The all-metal lock with instant springback secures positioning, paired with a hardened probe (HRC60+) and chrome handle resist wear. This system reduces adjustment and wear during repetitive deep-bore (150mm/6") tasks, ensuring stability in high-vibration environments
• 12 Different Specification of Gauge: This digital bore gauge provides 12 probes (50-105mm, 5mm steps) with hardened tips (±0.003mm repeatability). 50-65mm for small/mid-sized bores (pumps, gearboxes), 70-85mm for heavy spindles, and 90-105mm for large components (turbines, cylinders). Quick-change Φ8mm shafts enable task transitions, cutting costs and downtime via one-system use
• Powerful & Efficient Grinding:The straight pneumatic grinder is powered by compressed air, with a speed of up to 25000RPM and a working pressure of 90PSI, which can efficiently grind and facilitate the handling of larger and harder workpieces to reduce working time and costs
• Rear Exhaust Design:XUNTOP air die grinder adopts rear-exhaust design, which ensures that the exhaust will not face the operator to protect your safety.Meanwhile, it can effectively reduce noise, vibration and dust generated into the tool and operation area during the work