Spear tip design and straight flute can speed up the drilling, so as to improve drilling efficiency. Size: 3mm (1pc), 4mm (1pc), 5mm(1pc), 6mm (1pcs), 8mm (1pcs), 10mm (1pc), 12mm (1pc). Straight Flute: The drill bit with straight groove design can quickly drill holes, and there is no debris accumulated in the drill bit, so it will not get stuck when drilling.
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