Description
Blind-hole tap for stainless and acid-resistant steels.
Application
For Whitworth parallel pipe threads DIN ISO 228/1.
Features
45° right-hand helix.
Material-specific flute geometry.
Advantages
Good process reliability.
Product Data
Product type: Blind-Hole Machine Tap G Thread For Stainless Steels
Article family: 137750
Thread size: G1/2
Threads per inch: 14
Thread diameter: 20.96 mm
Thread form: Form C
Tolerance: ISO 2X 6HX
Tool material: HSS-E-PM
Coating / surface: TiAlN
Dimensions
Overall length L: 125 mm
Shank diameter Ds: 16 mm
Square: 12 mm
Recommended tapping-hole diameter: 19 mm
Cutting Data
Steel <500 N/mm²: 15 m/min
Steel <750 N/mm²: 15 m/min
Steel <900 N/mm²: 12 m/min
INOX <900 N/mm²: 11 m/min
INOX >900 N/mm²: 9 m/min
ISO Code
Aluminium and plastics: N
Aluminium: N
Aluminium cast >10% Si: N
Steel <500 N/mm²: P
Steel <750 N/mm²: P
Steel <900 N/mm²: P
Steel <1100 N/mm²: P
Steel <1400 N/mm²: P
Steel <55 HRC: H
Steel <60 HRC: H
Steel <65 HRC: H
Steel <67 HRC: H
Steel <70 HRC: H
INOX <900 N/mm²: M
INOX >900 N/mm²: M
Titanium >850 N/mm²: S
Cast iron GG/GGG: K
Copper alloys: N
Graphite / GRP / CRP: N