Feature: 1. High Accuracy Measurement: Table saw calibrator with dial indicator, providing smooth movement, sensitive measurement, and accurate readings to ensure more efficient calibration of the table saw 2. Flexible Adjustment: Adjust the measurement length through the knob nut, with a range of 0-120mm, to meet the distance needs of different sawblades and slide rails, providing flexibility and adaptability 3. Accurate Locating: The bearing of the table saw calibrator slides smoothly, fixed on both sides with screws, and the position of the middle scale bar is adjusted to achieve sawblade cutting and locating 4. Dial Indicator: This table saw calibrator is equipped with a dial indicator, features high sensitivity and shockproof design, and the glossy probe to help you easily complete sawblade calibration 5. 2 Sliding Blocks: This kit provides 2 sliding blocks of different specifications, which can adapt to the 30 type and 20 type saw table sliding rail on the market, making it suitable for more scenarios Specification: Item Type: Table Saw Calibrator Material: Aluminum Alloy Adjustable Range: Approx. 0-120mm / 0-4.7in. Package List: 1 x Table Saw Calibrator 2 x Sliders 3 x Hex Wrenches