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Reducing the size of a rod you want to thread with a die makes it easier to start the die,
but the real secret is to add a 30° chamfer to the end of the rod. Die Blank Size is the Major Diameter less 10% of the Pitch.
This is about the same as common bolts.
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- Replaces both plastic transmission gears with metal
- Fits mini lathes and 3MT mini mills
- Small Gear: 12 Teeth / 20 Teeth, 12 mm Bore, 4 mm Keyway
- Large Gear: 21 Teeth / 29 Teeth, 30 mm Bore, 5 mm Keyway
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- 6" travel stainless steel scale
- Stackable display unit
- Mounting arm
- Displays in inches or mm
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- +/-180 Degree Range
- Auto Off conserves battery life
- 0.1 Degree Resolution
- Compact and Lightweight design with ±0.1 Degree Repeatability
- Mounting magnets on 3 sides to ensure accurate measurements
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