THINKWORK Diamond Drill Bits, Dry/Wet Brazing Hollow Drill Hole Saw Kit, 12 PCS Tile Opener (1/4"-2”) with Double Suction Cups Hole Saw Guide Jig, Suitable for Glass, Ceramic, Tile, Marble, Porcelain - W6127

• ✅Tips: When the diamond bit is working, please continue to add water increase the water lubricity, which will greatly extend the period of the bit. 10 Times Longer Lie Tim - 8 pcs brazed dry diamond core hole saws kit are made of diamond integral steel, which is firm and durable. A high anti-corrosion brazing process is adopted on the surface, and the thickened diamond coating on the top provides excellent cutting strength for high-precision and smooth cutting, and the drilling is stable and fast. Stronger Suction Force - Different from the traditional diamond hole saw guide, we use upgrade double suction cup design. It provides good strength and can be firmly attached on a smooth surface, the adjustable size is 4mm-83mm. If the drilling area is small, can also be converted to single suction cup mode, a hole saw guide jig fixture two uses. Multiple Sizes - 8 pcs professional brazed dry diamond hole saw including 6mm(1/4"), 8mm(5/16"), 10mm(3/8"), 14mm(9/16"), 18mm(3/4"), 25mm(1"), 30mm(1-1/5"), 35mm(1-3/8"), 40mm (1-7/12"), 50mm / (2"). These diamond hole saw drill bit set contain different sizes of diamond bits to meet your unique drilling needs and improve your work efficiency. Ideal Choice for You - Our Tile Hole Saw Kit meet most hole drilling needs in your work or daily life. It is applicable for most brittle and hard material such as tiles, ceramic, glass (except tempered glass), marble, granite and terrazzo. Ergonomic Design - All brazed hole saws are handled by a special high-temperature resistant process. Even without water as a lubricant, they can still withstand the huge heat generated by the hole saw when it rotates at high speed. Of course, you can also use water as an additional coolant to extend the service life of the hole saw.