HARFINGTON 5pcs Concrete Masonry Drill Bit Set 3mm (1/8") 4mm (5/32") 5mm (3/16") 6mm (1/4") 8mm (5/16") Tungsten Carbide Tip Triangle Cross Drill Bits for Ceramic Tile Brick GlassOnline

Size – Drilling diameter: 3mm / 1/8″, 4mm / 5/32″, 5mm / 3/16″, 6mm / 1/4″, 8mm / 5/16″; hex shank: 6.35mm / 1/4″; type: cross angle head. (1/4″ hex shank installs easier and more securely into all power tools. Can be used with universal hand drills and bench drills.)

Material – Masonry drill bits with tungsten carbide tips are harder, more durable, and more wear-resistant than ordinary drill bits. Small incision resistance, accurate and easy drilling. Black chrome plating enhances corrosion resistance, extends service life and prevents rust.

Feature – Cross angle tip helps provide an efficient cutting action in masonry materials like concrete, brick and stone. The cross angle tip enhances the drilling speed and performance by reducing resistance and minimizing bit walking.

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Applications – The drill bits are versatile tools designed for drilling holes in concrete, masonry, bricks, glass, ceramic tiles, marble, stone, tile walls, glass mirrors, plastic and wood. Not suitable for metals. Make sure there are no steel bars or other metal objects before drilling.

Notes – Please keep the drill bit vertical and use cooling water or coolant to lubricate and cool the cutting edge. Start drilling at a slow speed and gradually increase the speed to achieve an efficient drilling progress. Always wear appropriate personal protective equipment.

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