18 mm Wellenschliff Hohlkern Diamantbohrkronen Lochsäge für Glasfliesen Stein 2 Stück
Specifications:Drilling Diameter: 18mm / 0.71"Drilling Depth: 30mm / 1.18"Round Shank Diameter: 8mm / 0.31"Total Length: 55mm / 2.17"Material: Diamond, 45# Carbon SteelFinish: Nickel PlatedHead Style: SerratedPackage Content: 2pcs x Diamond Drill BitsDescriptions:The serrated drill bit increases the sharpness and opening speed. Sharper and more durable than ordinary electroplated drill bits, especially suitable for thick glass openings. (10mm thick glass generally has about 300 openings.)Using electroplated diamond (50-60 grits), the opener creates precise, smooth cuts with no broken edges. Nickel plating improves hardness, wear resistance, corrosion resistance, and greatly extends the drill bit life. Low drilling resistance, continuous cutting edges, high precision, little or no chipping.
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