After the indicator is highlighted, you should adjust the rotating speed of the machine, making sure it is suitable for the size of the cutter.Then, activate the magnet switch and verify that the magnet indicator is lit in green. The next step involves moving the machine near the mark and positioning the tip of the pilot pin over it.Once the ejector pin is in place, you should Insert the core drill bit into the machine's keyless harbor and mark the area where you want to drill the hole.Never attempt to operate a core drill without inserting an ejector pin first. ![]() Insert the ejector pin into the core drill while grasping it. The first thing you need to do is select the appropriate ejector pin based on the cutter blade's length.To ensure high-quality holes while extending the life of both the drill bit and the machine as a whole, you should follow these important steps: ![]() Once you are fully protected, you can then start the drilling process. When using a core drill, you must wear protective equipment before drilling, such as: Cutting edge - does the actual cutting and Comes in different angles known as geometry.Ĭore drills are great for drilling large holes quickly and efficiently.Flutes - used to eject chips from the drill bit during drilling.Flats - make the drill bit more stable. ![]() Allows for the coolant flow to enter the hole and helps locate the centre of the hole.
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