1/4inch Woodworking Electric Engraving Polishing Drilling ...
2020-3-11u2002·u200216mm or 5/8' 7,650 - 11,500 2.Apply only a little pressure As with all drill bits and burrs, let the burr do the work and apply only a little pressure otherwise the cutting edges of the flutes will chip away or become smooth too quickly, reducing the life of your burr.
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