Insize Portable Refractometer 0-32% Brix Coolant Tester ISQ-RM30 301 With a 90-degree V-groove that

With a 90-degree V-groove that measures 2-1/4 inches deep

M5 - 10mm - 10 PCS

MT3-MT5 Reducing Drill Sleeve Arbor Adaptor

5mm and 1/32" on the front face

Insize Portable Refractometer 0-32% Brix Coolant Tester ISQ-RM30 301 With a 90-degree V-groove thatThe Insize ISQ RM30 Portable Refractometer is a compact and reliable instrument designed for quickly measuring the concentration of coolant, sugar solutions, juices, and other liquids. Ideal for workshop, machining, and industrial environments, it provides fast and accurate readings to ensure proper coolant mixture and process control. Designed for ease of use, this refractometer features simple zero adjustment without tools and a clear optical scale