Drilax Diamond Hole Saw Drill Bit Set Longer Tall Version 3/4, 1, 1-3/16, 1- 3/8, 1-5/8 Inch Quartz Granite 3cm Thick Counter-top Ceramic Porcelain Tile 5 Pieces Set Insert Guide Included
Brand: DRILAX
<p>SUPERB QUALITY DIAMOND COATING - EXTRA LONG for 3cm countertop drilling</p> <p> Excellent results in glass, marble, slate, and tile. Nickel plated. Segmented design works better and lasts longer.</p> <p><strong>Shank diameter: 3/8 inch</strong></p> <p><strong>Sizes: 3/4, 1, 1-3/16, 1-3/8, 1-5/8 inch </strong></p> <p>Note: To prolong the life of these bits, use on a low speed with coolant (water/oil)</p> <p><strong>This set is specially manufactured for drilling holes in thicker materials such as granite counter-tops. You can drill 1 1/4 inch to 1 3/8 inch in depth with ease.</strong></p> <p><strong>The drilling portion of the hole saw is 1-3/8 inch tall outside.</strong></p> <p>Shank is 3/8 inch - common electric or rechargeable drillers can be used.</p> <p>Electroplated diamond coating will wear off if the tool gets too hot.</p> <p>Never let your drill bit run dry.</p> <p><strong>Here is how you could use water to keep the tool cool:</strong></p> <ol> <li>You can build a mini water dam around the hole with plumbers putty.</li> <li>You can choose to spray water on the drill bit.</li> <li>Or you can use running water to cool the drill bit.</li> </ol> <p><strong>EASY TO USE</strong></p> <p><strong>FREE High Density Poly Insert Included</strong> - You can use it as a guide to keep the hole saw in position.</p> <p>We recommend using DRILAX Diamond Hole Saw Drill Guide.</p> <p>Center pilot drill bits are for wood, metal, etc.;</p> <p>Here is how you can keep the drill bit on target:</p> <ol> <li>You can make your own guide out of plywood - plastic or even a card board. All you need is to keep the drill bit in place until it makes the initial marks. You can also use the insert as a guide.</li> <li>You can start drilling at an angle, with the edge of the drill bit making a C slot and then getting the drill bit up to vertical.</li> <li>You can manually guide the drill bit with wet sponge. Please use protective gear.</li> </ol>
SPECIAL FEATURE 30 Percent longer (deeper) than most competitors. You can drill through 3cm to 3.5cm thick materials with our tools. Quartz or marble counter-tops are no problem.
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5 Pieces Set of Diamond circular drill bits, Case and Insert Guide Included.
Shank size is 3/8 inch for standard drills.