TwinCut®

The TwinCut system is suited for applications where larger pitches is required but where the hole diameter is limited.TheTwinCut system allows internal threading in holes with a diameter from 18 mm and above.The TwinCut insert has two cutting edges, with a chipbreaker sintered into it.

Since the system has very high indexing accuracy, the cutting edge can be changed without time-consuming dimensional resetting. TwinCut inserts can be used for both right-hand and lefthand threads, which cuts down your stock-keeping needs.

The larger toolholders have replaceable cassettes for different insert sizes, which drastically reduces the tooI- holder costs.

Cutting data

The table gives recommended cutting speeds in m/min. for different materials and carbide grades.

Number of passes

The table gives only general recommendations. Many times fewer passes can be used, depending on material and setup.

The above recommendations are for full profile UN, ISO and Withworth. For Trapezoidal, ACME, NPT please contact your local STS distributor.