TURNING

**Definition:** This place covers:

Turning, lathes and related equipment, turning tools, tool holding systems, chucks, boring, boring tools, drilling machines and equipment, drilling tools.

Turning and boring are taken as being the removal of chips by the relative rotation of tool and workpiece wherein the cutting edge describes a substantially continuous spiral or helical path with respect to the workpiece.

**Limiting references (this place does not cover):** - Drills bits and machines for surgery, chucks and guiding devices therefor -> A61B17/16 - Tools for dentistry -> A61C1/00 - Drilling machines combined with arrangements for riveting -> B21J15/10 - Orbital drilling by milling -> B23C3/02 - Multi stage processes involving turning & boring and other operations such as making particular items by multistage processes, once of which is turning/boring or drilling. -> B23P13/00 , B23P15/00 , B23P23/00 - Making turning, drilling or boring tools -> B23P15/28 - Details of machine tools and accessories not related to the operation being performed including: -> B23Q - Clamping systems for workpiece tables -> B23Q3/00 , B25B - - tool changing -> B23Q3/155 - - conveying workpiece into and from machine -> B23Q7/00 - - evacuation of swarf, -> B23Q11/0042 - - guarding & protective coverings -> B23Q11/08 - Adaptive control and/or computer controls for turning, boring or drilling processes -> B23Q15/00 , G05B15/02 - - measuring or sensing -> B23Q17/00 - Control systems and devices for copying from a master template or patterns -> B23Q35/00 - Details of powered hand tools not related to the drilling operation -> B25F - Drill stands -> B25H - Turning, boring or drilling of wood -> B27 - Turning, boring or drilling of stone and glass -> B28D1/14 , B28D1/16 - Cutting inserts characterised only by the composition of the hard metal material -> C22C - Cutting inserts characterised only by the composition of the diamond cutting material -> C23C16/00 - Cutting insert characterised only by the composition of the coating -> C23C30/00 - Drilling of earth or rock -> E21B