Description
Fluteless machine tap for G parallel pipe threads.
Application
For Whitworth parallel pipe threads DIN ISO 228/1.
Features
Optimised polygon geometry.
Oil grooves.
Advantages
Low torque and high process reliability.
Product Data
Product type: Fluteless Machine Tap G Thread
Article family: 139400
Thread size: G1/8
Thread form: With internal coolant
Tolerance: ISO 228X
Tool material: HSS-E-PM
Coating / surface: TiN/TiAlN
Dimensions
Overall length L: 90 mm
Shank diameter Ds: 7 mm
Square: 5.5 mm
Recommended tapping-hole diameter: 8.8 mm
Threads per inch: 28
Thread diameter: 9.73 mm
Cutting Data
Steel <500 N/mm²: 38 m/min
Steel <750 N/mm²: 37 m/min
Steel <900 N/mm²: 35 m/min
INOX: 12 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
Hardened steel: H
INOX: M
Titanium: S
Cast iron: K
Copper alloys: N
Graphite / GRP / CRP: N