Features: _x000D_Precision-Parallelogram Design: Engineered with an innovative parallelogram mechanism that guarantees accurate center alignment every time. _x000D_Effortless Mortise Tenon Centering Eliminates guesswork for woodworking joints: The precision-machined parallel arms adjust seamlessly to material thickness, positioning the marking bar at the exact midpoint. Simply scribe both sides of the bar for flawlessly centered lines_x000D_Instant Center Line Marking: Place the gauge on any wood edge, squeeze the sides, and let the self-centering bar instantly reveal the midpoint. Ideal for marking center lines on boards, dowels, or sticks with unmatched speed and accuracy_x000D_Versatile Workshop Companion: Perfect for plate grooving, pin joints, assembly alignment, drilling reference lines, mortises, rabbets, and more. Crafted from durable stainless steel, this tool withstands heavy use while maintaining precision_x000D_ _x000D_Notice:_x000D_1.Actual color may be slightly different from the image due to different light effect_x000D_2.Please allow 1-3cm deviation due to manual measurement_x000D_Description:_x000D_Material: Aluminum Stainless Steel_x000D_Weight: 420g-450g_x000D_Product size: 10x15cmPackage List:_x000D_1 Set Center Gauge