External Thread Cutting Tools Lathe

The bottom surface of the tool shank.

External thread cutting tools lathe.

Its cutting edges sharpened to the shape and size of the thread to be cut. Threading lathe tools cut threads in plastic and most metal with these high speed steel tools. The tool moves across the piece linearly taking chips off the workpiece with each pass. In external thread cutting the piece can either be held in a chuck or mounted between two centers.

With internal thread cutting the piece is held in a chuck. 4 1 external thread cutting tool metric b s w or american v thread are formed by a single point thread cutting tool. Usually 5 to 7 light cuts create the correct depth of the thread. The same nomenclature applies to all cutting tools.

A thread is a uniform helical groove cut inside of a cylindrical workpiece or on the outside of a tube or shaft. 1 cutting depth 8 to 32 tpi 0 36 diam internal thread solid carbide single point threading tool bright finish 2 1 2 oal 3 8 shank diam 0 08 projection from edge 60 profile. Both inch and metric screw threads can be cut using the lathe. The shape of the tool is determined by the included angle at the nose of the tool which should correspond to the angle of the thread.