Auniwaig Diamond Drill Bits Hole Saw Nickel plating on these bits maximizes your tools life with great resistance to corrosion. Side holes allow for easy slug removal after drilling. Each hole is treated with smooth and accurate surface treatment,and the top oh the hole is thickened to achieve excellent cutting strength. Used on Drill Glass,Wood,Tile Bottles,Blocks Jars, Ceramic,Slate Mable, Granite Light Stone, and other hard surfaces. Technical Parameters Product Name: Diamond Drill Bits Drilling Depth: 25mm / 1-inch Total Length: 50mm / 2-inch Color: Silver Tone Material: Carbon Steel Surface Treatment: Nickel Plating Operation Notes As with all diamond drill bits you should use water as a lubricant and coolant. Being hollow, allows the water to flow up inside and around the inner core of these drill bits as you are drilling, helping to keep the drill bit cool and removing the debris. Start your hole diagonally, make a round trace and then hold drill straight. Due to light problems, the display settings may cause a slight color difference between the picture and the actual product. The final color is subject to the actual product. Read more Details Premium Quality Our diamond drill bits are all made of high-strength carbon steel, coated with a nickel-plated layer, rust-resistant and corrosion-resistant, designed for the long-term using Smooth and exact finish for lowering incision resistance and drill pressure, increasing the sharpness, and effectiveness of water lubrication. Clearance Hole The side slots on the bit's body can help the entry of cooling water and the ejecting of debris from the borehole. When debris gets stuck in the hole saw. You can use the mini screwdriver to pull it out. Diamond drill bits with clearance hole facilitate the entrance of cooling water and escape of chips and other particles from drilling. Makes drilling process easier.is instantly aging when the diamond breaks off. Sintered diamond cutting edge contains diamond particles from inside to outside, to ensure that the edge is always sharp. Sintered diamond has the sharpening property but electroplated or brazed diamond can not be sharpened. Robust and Durable Nickel plated with diamond powder coating provides superior performance and cutting strength for extended life. High quality and performance, this diamond bit is perfect for making clean and accurate holes, making it your best choice. Read more How to Use Step 1: Clean the surface and mark the location of the lower hole, angle drill 45 degrees, and slowly start drilling. Step 2: Use water to keep it wet. Step 3: The hole is being drilled at a low speed. Once the hole appears, turn the drill bit to a vertical position. Step 4: Slow down and drill the hole off, for out of the hole to prevent a breakthrough.Note: If you smell burning, back off! Either your speed is too high, or you are applying too much pressure. Your drill should not be hot, or even warm.The general rule is that the smaller the diameter of your drill bit, the faster you can use your drilling speed. The harder your material is, the slower the drill speed you should use. Read more Versatile Diamond drill bits are perfect for drilling holes through hard materials such as these: Glass, sea glass, beach glass, fused glass Stone, gemstones, rock, pebbles Ceramic, porcelain, tiles, glazed pottery, plates Shell, antler, bone, fossil Very hard wood You can use a wood template to locate the diamond hole saw. Drilling faucets or pipes pipe holes (wall or floor) for kitchen and bathroom renovations. Complete Bathroom - Shower Renovation with DRILAX Diamond Tools Use Water As Coolant for Maximum Performance Drills Through 8PCS 6mm Dia Diamond Drill Bits Hole Saw 32mm Dia Diamond Drill Bit Hole Saw 40mm Hole Saw Diamond Drill Bit 6PCS 10mm Dia Diamond Drill Bits Hole Saw 5 Pcs 16mm Hole Saw Diamond Drill Bit Hollow Core Drill Bit Drilling Diameter 6mm/0.24inch 32mm/1.26inch 40mm/1.57inch 50mm/2inch 16mm/0.63inch Material Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel Surface treatment Nickel Plating Nickel Plating Nickel Plating Nickel Plating Nickel Plating Color Golden Tone Golden Tone Golden Tone Silver Multicolour