Check the alignment of the table saw blade and fence, the parallelism of the jointer/planer head to the table, the router/shaper spindle runout, or any other setting or calibration measurement you need. This is a perfect starter kit for amateurs and small shops. Features a self-adjusting bevel groove rod with a horizontal screw and spring plunger that fits securely into your bevel groove. Ideal for aligning and calibrating shop machines such as table saws, band saws, and drill presses. Constructed from high-quality aluminum alloy with an anodized surface for corrosion resistance, rust resistance, and durability. Name: Table Saw Dial Indicator Corrector Model: Short/Long Color: Red + Silver Material: Aluminum Alloy Package Contents: 1 x Table Saw Dial Indicator Corrector Note: Light reflection and different display settings may cause slight variations in the color shown in the image compared to the actual item. Measurement may vary by +/- 1-3 cm.