






HONGDUI HD-MG21 Miter Gauge with Miter Fence
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Engineered for absolute accuracy and workshop versatility, the HONGDUI MG21 Miter Gauge sets a new standard in table saw precision. Powered by a patented Crown Gear Lock mechanism with 140 positive locking positions, it delivers micro-accuracy down to 0.005mm and features 7 rapid-lock angles for intuitive operation. Designed with horizontal and vertical compensation for dead-perfect alignment, its slide rail fits 90% of standard 3/4" miter slots. Paired with an expandable fence (19"–36" / 480–910mm) that features metric/imperial scales, a double-rail fence stop with 0.02mm micro-adjustment, and a flip-stop pin for irregular workpieces, the MG21 guarantees uncompromised, repeatable cuts every time.
Precision Miter Gauge for Table Saws
Make accurate crosscuts and repeatable angled cuts with the HONGDUI HD-MG21 miter gauge. Its telescoping fence, positive angle stops and micro-adjustable flip stop give you dependable control for workpieces of different sizes.
Accurate angle setup from -70° to 70°
Choose from 11 positive angle stops, including 90°, 60° and 45°. The secure angle lock clicks into place, while the clear laser-etched scale makes custom-angle adjustments quick and easy.
480–910mm telescoping miter fence
Extend the fence from 480mm to 910mm to support larger workpieces. Dual metric and imperial scales simplify setup, and the concealed flip stop helps produce consistent repeat cuts.
0.02mm micro-adjustable flip stop
Fine-tune the flip stop with accuracy down to 0.02mm. A locating pin supports square and angled workpieces, while the magnified scale improves readability during precise adjustments.
Fast zero calibration
Complete the three-step zero setup with the adjustment knob, without extra tools. Set a 1–3mm blade-to-fence gap, position the flip stop against the blade and align the scale to zero for safer, more efficient cutting.
Universal zero-fit miter bar
Front, middle and rear adjusters help remove play for smooth travel. The bar fits 3/8 × 3/4-inch T-slots and U-slots and is compatible with many table saws, band saws and router tables. Optional 20mm, 20.3mm and 22.2mm sizes are also available.
- Model: HD-MG21
- Dimension: Approximately 560mm x 180mm x 140mm
- Material: High-grade 6061 Aluminum Alloy
- Weight: Roughly 3.5kg
- Compatibility: Standard 19mm x 9.5mm (3/4" x 3/8" ) T Slot or U Slot
1 * Miter Gauge
1 * Miter Fence
1 * Micro Flip Stop
1 * Magnetic Block
We provide clear and easy-to-follow user manuals to help you get started effortlessly.
Click here to explore tutorials for our product.
WARNING! This product can expose you to chemicals, including chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov




