Depth Gauge Woodworking tool for Router Bit: Set your router table fence a precise distance from the center and adjust the bit height at the same time. Ideal for routing dados and fluters, this steel router bit height gauge allows for hands-free use and includes a locking knob. Precise Angle Measuring Tool: Our 12” height gauge with half-round notches lets you register the gauge center of ¼” and ½” shank router bits. You can also use this woodworking router depth gauge tool to measure to the edge of the cutter rather than the middle of the shank. Wide Applications: From setting the router table to cutting dadoes or grooves, our router bit depth gauge has a wide range of applications. These steel height gauges with hairline indicators adjust for dead-on accuracy to make two primary adjustments- the fence distance and bit length. Easy Usage: Use these depth gauges to measure, mark, and locate the required blades, bits, and fences more easily. This easy-to-use depth gauge tool allows you to measure the inside and outside angles of the surface accurately. Premium Design: Our router height gauge tools are designed with a nylon-tipped knob that secures the gauge without a marring ruler. This 12” long steel ruler features metric and imperial measurements. Rockler Router Bit Alignment Gauge (12”): A multi-functional router bit measuring tool device, commonly used for adjusting router bits, dado saw blade settings, measuring mortise, and table saws, with high precision results. Measure the router fence distance and router bit height with ease with this center/depth gauge tool. Directions to Use: Just set the hairline indicator for the distance you need from the fence to the center of the bit, hook it onto the bit shank, then slide the fence over until it touches the gauge. To use it as a height gauge, simply set it at your router bit height, lay the foot flat on the table, and raise the bit until it touches the arm. The half-round notches let you register the gauge to the center of ¼” and 1/2 shank router bits. — Woodworking Measuring Tool Specifications: The Rockler Bit Center Drill Depth Gauge weighs 0.550000. The gauge length is 12” and the ruler material is made of steel with metric and imperial graduations. --- Gauge Center Finder Woodworking Features: Easily set your router fence a precise distance from the center of your router bit-ideal for routing dados and flutes – Also doubles as a height gauge for setting the heights of router bits and blades – Broad foot rests against router table fence and is offset so the fence opening isn’t a problem – The hairline indicator adjusts for dead-on accuracy. --- About Us: The history of Rockler Woodworking and Hardware goes back to 1954 when Norton Rockler started the Minnesota Woodworkers Supply Company in north Minneapolis. It was a small mail-order business with a big aspiration – to become woodworkers' go-to resource for everything they need to complete their projects.