THREADING/STYLE/SPIRAL POINT/338Ni

Taps Designed for Nickel-Based Alloys

EDP: 3380020258
M20 X 2.5 D8 3S/P PLUG EXOPRO WHR-Ni HR
Description
M

Stainless Steel

Stainless Steels : 17-4PH

Good
Best
H

Hardened Steel

Hardened Steels : 45-50 HRC

Good
Best
S

Heat Resistant Super Alloy

Nickel Alloy : Inconel

Good
Best
M

Stainless Steel

Stainless Steels : 17-4PH

Good
Best
H

Hardened Steel

Hardened Steels : 45-50 HRC

Good
Best
S

Heat Resistant Super Alloy

Nickel Alloy : Inconel

Good
Best
Description
The EXOPRO-WHR-Ni spiral point tap series is one of OSG’s latest innovations for nickel-based alloy applications. The WHR-Ni series features a unique rake angle to improve cutting edge rigidity, which helps prevent chipping and prolongs tool life. With the addition of OSG’s patented HR coating, wear resistance and tool life can be substantially prolonged versus the competition.
Features & Benefits
OSG’s patented HR coating Improves wear resistance to prolong tool life.
Unique rake angle Improves cutting edge rigidity to prevent edge chipping.
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Thread Size - MetricM20
Thread TypeM
Pitch2.5
Thread LimitD8
Chamfer TypePlug (5P)
Major Diameter - Metric20
Thread Length - Metric (Lc)30
Tap Drill Size Min - Metric17.294
Tap Drill Size Max - Metric17.744
Neck Length - Metric (L1)44
Overall Length - Metric (L)140
Shank Diameter - Metric (d)16.5608
Square Length - Metric (Ik)17.4625
Square Width - Metric (k)12.4206
STI ThreadNo
SubstrateVC-10
Surface TreatmentHR
Coolant ThruNo
Number of Flutes3
Cutting DirectionRH
Helix Angle - Degree0
Interrupted ThreadNo
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Basic 3D Model (STP)

2D Drawing(DXF)

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