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CNMG 120404-MM ET21P Carbide Medium Cutting Inserts Edgetech
CNMG 120404-MM ET21P Carbide Medium Cutting Inserts Edgetech

CNMG 120404-MM ET21P Carbide Medium Cutting Inserts Edgetech

£3.81
(Exc. 20% VAT)
£13.59
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Part Number
TI00637
Shape
CNMG
Relief Angle
Negative = 0° (Clamp or Lever)
Edge Length
12 (12.7mm)
Thickness ISO/mm
04 (4.76mm)
Radius
04 (0.4mm)
Grade
ET21P
Chipbreaker Code
MM
Interrupted Cut?
No - Stable conditions
Will Cut Steel? (P-Blue)
Yes
Will Cut Stainless Steel? (M-Yellow)
Yes - Excellent
Will Cut Cast Iron? (K-Red)
No
Will Cut Heat Resistant Alloys? (S-Orange)
Yes
Will Cut Non-Ferrous? (N-Green)
No
Will Cut Hardened Steel? (H-Grey)
No
Europa Edgetech
Information
ISO DesignationEdge
Length
LE (mm)		Thickness
S (mm)		Radius
RE(mm)
ChipbreakerGrade
CNMG120404-MM12 (12.7)04 (4.76)04 (0.4)MMET21P


Grade: ET21P
Type: Single layer PVD coated grades are designed to balance edge strength with extended tool life..
Colour: Gold
Grade Summary: ET21P Optimised grade for cutting of stainless steel at high cutting speeds.
Type of Cut: MM chipbreaker - Medium cutting of Stainless Steel.
Best for: Stainless Steels.

Technical Data & Info

Feed Rate & Depth of Cut

fn (mm/rev)0.20 - 0.35
ap (mm)0.5 - 3.5

Speeds Chart

Material VDI GroupMaterial DesignationMaterial ConditionHardnessGradeSpeed M/Min
12Stainless steel & Cast stainless steelFerritic/Martensitic, Annealed≤200 HBET21P160 - 220
13Stainless steel & Cast stainless steelMartensitic, Quenched & Tempered≤240 HBET21P160 - 220
14Stainless steel & Cast stainless steelAustenitic≤180 HBET21P100 - 200
Turning Calculator
Document

Turning Speeds Calculator

RPM
mtrs/min
mm

Results

RPM
mtrs/min
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