20Pcs 3mm 1/8" Diamond Hole Saw Core Glass Drill Bits Masonry Tools for

JINGLING 20Pcs 3mm 1/8" Diamond Coated Hole Saw Drill Bits For Glass Tile Ceramic Granite The 3mm diamond coated hole saw suitable for use in drill hole on glass, marble, tile or granite. Product Name: 3mm diamond drill bit, diamond hole saw 3mm, 1/8 diamond drill bit Hole/Outer diameter : 3mm (close to 1/8") Total length : 50mm (close to 2") Drill depth (Max.): 5mm depth, recommend drilling depth less than 5mm. If you drill too deep (such as the thickness of tiles/glass more than 5.1mm), the drill bit will be scrapped because the middle hole is blocked Shank diameter: 2.65mm Can be installed on hand drill and bench drill.  If your dremel have Multi Keyless Universal Quick Change Chuck, the drill bits will work in your dremel. Quantity: Total 20 Pcs Drilling speed: Drill a hole in seconds Type:Core Drill Bit Use:Masonry Drilling Material: Steel, Diamond Use with water as a lubricant Quick Tips 1. Please add water for coolant and drill slowly 2. Start drill at 45 Degree to surface and align to 90 Degree as hole forms 3. Never use drills while machine is in hammer action. 4. Holes Require No Futher Work as Cutting is Clean Please add the water to cool the drill bit while drilling hole process The Diamond Hole Saw Does NOT Have Center Pilot Drill There is no need for a Pilot Drill Bit, because pilots are not safe for glass/stone. How to use a hand drill to drill holes in the glass/tile/stone? Step 1. The bit on the glass/tile/stone 45 degree, open a half-moon notch on it Step 2. Slowly up the bit to 60 degrees, and then gently drill Step 3. Reached 90 degrees, continue to drill Step 4. Drill through the glass/tile/stone finally, the technique requires a "wobble" of the drill rather that steady pressure straight on We Can List Any Size & Amount of  This Product: Hole diameter from 2.5mm to 200mm We will send out your order within 1-2 days after payment has been received and cleared Please let us know if you are looking for other accessories or hardware

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