Digital Gauge Digital Tread Gauge LCD Magnetic Standalone Aperture Handheld Routers 0 - 80mmOOTDTY Features:This digital depth gauge is a useful tool for measuring aperture depth in woodworking, metalworking, and other applications. It can measure in metric (mm) and imperial (inch) units, and the readings can be easily read on the LCD display. For handheld routers and router tables. The hole is 60mm wide. Measuring Range: 0 - 80mm / 0 - 3-1/8"Self-contained for setting cutter depth on router tables and low profile for backfence adjustment. Specification:Measuring Range: 0 - 80mm/0 - 3 1/18"Hole Depth: 0 - 50mm/0 - 2"Resolution: 0.01mm/0.0005"Material: ABS & MetalDimensions: 100x15 5mm/3.94x6.1 inchPowered By: CR2032 3V (Not Included)Color: BlackQuantity: 1 PcNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 x Digital Height and Depth Gauge