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Product Description
1-3/8inch D35mm Dry Use Laser Welded Diamond Core Drill Bits
* Applications: Stone drilling in counter top, kitchen, toilet.
* Connection Type: M14, 5/8"-11 Thread.
* Segment type: Crown segment or normal segment.
* Welding method: Outer diameter ≤ 18mm is silver soldering, ≥ 20mm is laser welding.
* Each drill bit has the brazing rods, four outside and two inside, which protect the steel disc, extend the life.
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