Multifunctional Cross Alloy Drill Bit Tip(black 5pcs)

Strong & Sturdy Material: The masonry drill bits set are made of high quality alloy as raw material. the process of oxynitriding of the cutter head strengthen the drill hardness. strong and durable, with long service life.Unique Cross Angle Design: The Triple-cornered cross alloy drill bit set adopt a unique bevel design, small incision resistance. feature drilling stably, fast speed, not breaking the border. opening neat, smooth, no broken edges, no tremor phenomenon, chip easily.Surface Electrophoretic Paint Process: The titanium combination drill tap bits set adopt full-grinding and anti-rust treatment, clean and sharp without burrs .the Triple-cornered drill bit is more wear-resistant and more durable .Fully automated polishing: Polished CNC is fully automated, each one is unified.Wide Range of Applications: Professional multifunctional cross alloy drill bit set can provide smooth, accurate and stable drilling in ceramic tiles, marble, thin iron plates, mirrors, and glass. Remember to add water or coolant when drilling, this will make the effect better.5 Different Sizes: Our glass concrete drill bit set have 5 different sizes suitable for your different needs and select. It Can be installed in the general electric hand drill, bench drill. The machine drill clamp range is 10mm and above.Specifications:Product Weight: 125gColour:blackMaterial:alloyPackage Contents:5 * drill bit(3mm, 4mm, 5mm, 6mm, 8mm)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.