Bore Measurement & Finishing Kit: 0.7-6" Digital Indicator Bore Gauge Set & 20000Rpm Right Angle Air Die Grinder, for Cylinder Machining, Internal Polishing & Deburring in Automotive & CNC

Engineered for comprehensive cylinder and bore work, this kit pairs a precise digital indicator bore gauge set with a versatile right angle air die grinder. First, use the bore gauge to accurately measure 0.7-6" internal diameters and depths for engine blocks, hydraulic cylinders, or CNC-machined parts. Then, switch to the right angle grinder to effortlessly polish, deburr, and finish those hard-to-reach internal surfaces and edges. This seamless workflow ensures that every bore is not only measured to exacting tolerances but also finished to a smoothness, saving time and guaranteeing quality from measurement to final touch.

• 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
• Powerful & Efficient Grinding:XUNTOP pneumatic angle grinder machine is powered by compressed air, the speed can reach 20000 RPM, the working pressure can reach 90PSI, which ensure higher grinding precision and efficiency . High motor power allows you to complete tasks more efficiently
• Rear Exhaust Design:XUNTOP air angle 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