DT-DIATOOL Dry Diamond Drill Bits 5/16" 2pcs for Tile Porcelian Marble with Quick-fit Hex Shank

Product Name:2 pieces 8mm Vacuum Brazed diamond drill bits(5/16" Quick-fit Hex Shank) Specification: Diameter 8mm, Hexagon Shank, diamond length 10mm, total length 80mm. Quantity: 2 Pieces 8mm Application: Dry/Wet Drilling porcelain tile, marble, stone, granite, masonry, brick. Feature: 1. Wax inside for cooling, Dry drilling without water. 2. Very high efficiency, multi-purpose drilling. 3. Vacuum Brazed technology and high quality diamond grains provide high efficient working and long time performance. Notice Ensure all the forms of percussion or hammer action are turned off. Applying excessive pressure will not make the bit drill faster but will create excessive heat and subsecuently reduce the efficiency and life time. Use a suction cup guide to enable an accurately positioned hole, alternatively place the drill at a 45 degree angle. Drill until the drill bit starts to penetrate the material and then bring the drill up into the upright position and continue.

• Vacuum Brazed 8mm Dry Tile/Porcelian Drill Bits, 2 Pieces/Pack
• Diameter 8mm, Hexagon Shank, diamond length 10mm, drilling depth 30mm,total length 80mm
• Wax inside for cooling, which provides good performance for dry drilling, very convenient
• For drilling tile/ceramic, marble& granite, masonry, concrete, hard plastic,etc
• High quality Diamond Grain provides fast and smooth drilling, vacuum Brazed technology provides much longer working