Step 1 Draw the location of the holes accurately on the material. Align the square hole drill bit with the location of the drawn line.
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Step 2 Apply steady vertical pressure with the drill on the first marked hole, rocking back and forth evenly, avoiding swaying from right to left.
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Step 3 When drilling the second hole, it is recommended that the area of downward pressure should not be more than two thirds of the area, more easily.
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Step 4 The same as the traditional manual mortising method, obeying the order of drill the holes first from front to back and then from left to right.
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