This multifunction height gauge combines aluminum alloy construction with precisions ground surfaces, ensuring consistent depth measurements across wood,, and composite materials Designed for woodworking professional and DIYer enthusiasts requiring stable calibration devices, it serves both garage workshops and industrial job sites with repeatable accuracy Engineered for precisions, this multipurpose aluminum height calibration tool delivers ±0.01mm accuracy across 3 26mm measurements, featuring anodized alloy construction that resists deformation for workshop reliability The light weight design with double scale markings ensures quick readings, while the easy locking mechanism enables 3 second adjustments for efficient router table setups Optimize router tables and milling machines for cabinet joints, edges profilings, or materials thickness checks using its 5 " 12 " measurement ranges and engraved scale, Manufacturer: JDNH