Mitutoyo Digital ABS Depth Caliper IP67, Hook Type 0-200mm, 571-255-20Mitutoyo; Digital Depth Gauge This Digital Depth Gauge is IP67 coolant proof and offers you the following benefits: ABSOLUTE System gives you reliable measurements. Its base and measuring faces are hardened and micro lapped for robustness. It has excellent resistance against water and dust (IP67 protection level) enabling you to use it in machining situations that include splashing coolant fluid. Extremely resistant to both coolants and lubricants.