TwinCut®
The TwinCut system is suited for applications where larger pitches is required but where the hole diameter is limited.
- High indexing accuracy
- Right hand and left hand threads
See our PDF-document for a detailed presentation of this product:
-
General info
General info
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 tool-holder costs.
-
Technical details
Technical details
Cutting data
The table gives recommended cutting speeds in m/min. for different materials and carbide grades.
Material P30C Low-carbon steel ? 650N/mm2 180-220 Carbon steel 650-850N/mm2 130-190 Alloyed tool steel and heat-resistant steel 120-160 Stainless steel 90-170 Cast iron HB 180-250 Non-ferrous materials Number of passes
The table gives only general recommendations. Many times fewer passes can be used, depending on material and setup.
Pitch mm 3.5 4.0 4.5 5.0 5.5 6.0 Pitch TPI 7 6 5.5 5 4.5 4 Nr. of passes 11-18 11-18 11-19 12-20 12-20 12-20 The above recommendations are for full profile UN, ISO and Withworth. For Trapezoidal, ACME, NPT please contact your local STS distributor.
