SWZHAI Dry Diamond Drill Bits Set 4 Pack 1/2 inch, Diamond Hole Saw Kit Round Shank for Granite Stone Marble Porcelain Glass Brick Tile Ceramic Hard Materials, Not for Wood (1/2 inch, 4)

SWZHAI Dry Diamond Drill Bits Set 4 Pack 1/2 inch, Diamond Hole Saw Kit Round Shank for Granite Stone Marble Porcelain Glass Brick Tile Ceramic Hard Materials, Not for Wood (1/2 inch, 4)

• 1/4" Diameter: Drill bits set contains 4 pcs bits for drilling holes diameter of 1/4 inch(6mm).
• Dry Diamond Hole Saw: The diamond drill bits are injected wax lubricant to melt and cool the drilling surfce when dry drill
• Material Technology: Masonry drill bit set is used vacuum brazed diamond technoloy, good for drilling clean holes to hard materials such as concrete, tiles, granite ceramic glass, porcelain ground, mirror , stone and masonry brick, please note it is not for wood using.
• Special Details: These tile drill bits are diamond coated for enhancing the drilling speed; Round Shank design is suitable for most machines such as Angle Grinder, Hand Drill and Bench Drill; Side flutes can smoothly and fastly to remove debris and drill holes ; Depth mark is useful for precise project.
• Package Included: This Diamond Drill Bits set contains of 4pcs same size drill bits, we offer 6 different size for your choosing: 1/4", 5/16", 3/8", 1/2", 9/16", 5/8"