High precision woodworking, metal mortise machine plunge tenon mortise machine small size chain mortiser machine

High precision woodworking, metal mortise machine plunge tenon mortise machine small size chain mortiser machine

Excerpted from the Internet, for reference only

Kueter introduced a user's unique method to overcome the phenomenon of "retraction" when machining titanium alloys: the radial runout at the tip of the drill bit supplied by the tool factory is required to be at the upper tolerance limit

Brenner points out that the common belief that step-cutting entails withdrawing the drill is not the case. Chip breaking is also possible if interrupted feed (a few revolutions or a short time) is used. In addition, exiting the drill bit is also prone to flaring and leaving some chips in the hole, so it has to be cut again. These situations are undesirable.