Precision made Carbon Steel plug makers for use on natural timber, exactly matching the holes produced by the Saw Tooth Forstners groups 1306 & 1307. High precision CNC ground flutes for improved quality of cutting edge geometry and precise diameter tolerance. These have four to six wings to ensure a clean cut. Use a slow, constant feed rate ensuring timber is clamped to bed of drilling machine. Precision ground internal bore with slight conical shape to ensure precise plugs are bored. Larg
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