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10pcs Pure Tungsten Pearl Hole Needle Deep Hole Digging Drill Bits For Pearl Drilling Machines


Product Information

The pure tungsten pearl hole needles are made by 100% virgin tungsten carbide raw material. The tungsten carbide has low impurity content so the drill bits won’t crack easily. With HIP (Hot Isostatic Press) process to ensure the stable microstructure, the service life time of drill bits is longer and it can improve the working & production efficiency.The pure tungsten pearl hole needles are widely used for drilling the holes of pearls and they're common in the jewelry industry.50mm Length

Product Code: TPNH

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