This Drill bit does not have a conventional tip. It uses the same design as the people who drill the old wooden lampstands. When it hits a knot in the wood, the noise changes pitch but continues to cut straight. It cuts in 3 places at once using a lip and spur design. The important thing is if you start straight it continues straight. Furthermore, keeping the jig aligned is important and correct stance is advised in the Long Drill instructions. This means no deviation and no strain on the Jig or housing. If you follow our instructions you should "pop-out" within 10mm of centre. I usually expect most achieve it within 6mm.

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