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WNMG...-FE RT305: PVD-coated turning insert for stainless steel

With the WNMG...-FE indexable insert in the specialized RT305 grade, you acquire a high-performance tool tailored for finishing stainless steels. The combination of a stable trigon shape and a sharp FE geometry creates excellent conditions for smooth and accurate cutting action. Thanks to the resilient PVD coating in the M20-M30 range, this insert provides substantial wear resistance, enabling consistent surface qualities during continuous turning operations.

Suitable materials

Technical data

  • Insert shape: WNMG (Trigon geometry, 80° corner angle)
  • Machining application: Finishing
  • Cutting condition: Continuous
  • Workpiece material: Stainless steel
  • Grade: RT305 (PVD-coated, M20-M30)
  • Packaging unit: 10 pieces

Dimensions of WNMG...-FE RT305

Item Nr. r L I.C S d
WNMG 060404-FE RT305 1661323 0,4 6,5 9,525 4,76 3,81
WNMG 060404-FE RT305 1331624 0,8 6,5 9,525 4,76 3,81
WNMG 080404-FE RT305 1661321 0,4 8,7 12,7 4,76 5,16
WNMG 080408-FE RT305 1661322 0,8 8,7 12,7 4,76 5,16

Cutting data

Stainless Steel
Vc (m/min) fn (mm/U) ap (mm)
WNMG 060404-FE RT305 140-220 0,07-0,2 0,1-1,5
WNMG 060408-FE RT305 140-220 0,07-0,2 0,1-1,5
WNMG 080404-FE RT305 140-220 0,07-0,25 0,1-1,5
WNMG 080408-FE RT305 140-220 0,07-0,25 0,1-1,5

Applications

The WNMG...-FE RT305 clearly shows its capabilities during the fine finishing and contour machining of stainless steel alloys. It is a well-conceived solution for demanding turning tasks where high dimensional accuracy is required under continuous cutting loads.

Featuring a negative trigon basic shape, this tooling concept provides six usable cutting edges per insert, delivering proven economic benefits for professional series production. Machining long workpiece contours is supported effectively and reliably by the tough cutting material.

Special features

A significant advantage of this indexable insert stems from the harmonization of the FE chipbreaker with the resilient carbide substrate. This specific design visibly minimizes the tendency to form built-up edges, which is crucial when dealing with challenging stainless materials.

Furthermore, the 80-degree corner angle merges the stability of a robust base shape with the precise cutting behavior of a dedicated finishing insert. This leads to controlled chip breaking at low depths of cut, rendering the tool a dependable asset for precise workflow routines.

1661323

Data sheet

Materials
Stainless Steel
Processing
Finish
Inserts
WN..

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