Round holes can be drilled with any standard drill. However, it is easiest if you use our step drill, which is specially designed for the combitech® dimensions.
Use the alignment groove as a guide. Thanks to this you can also drill several holes in exact alignment.
… and if, for example, you have to drill right through the middle of a round tube, then mark the holes on both opposite sides and first drill a hole from one side and then the second from the other side. In this way the unsightly burr remains on the inside of the round tube, and the holes are exactly opposite one another.
More information: http://products.alfer.com
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Post time: Oct-21-2017