Description
General-purpose metric fine blind-hole tap with optimised neck and flute length.
Application
For metric fine blind holes across a broad material range.
Features
HSS-E with higher vanadium content.
Vapourised surface.
Advantages
Improved chip evacuation and wear resistance.
Product Data
Product type: GARANT Vap Tap Blind-Hole Machine Tap Metric Fine
Article family: 137110
Thread size: 8×0.75
Thread pitch: 0.75 mm
Thread form: Form C, 40° right-hand helix
Tolerance: ISO 2 6H
Tool material: HSS-E
Coating / surface: Vapourised
Dimensions
Overall length L: 90 mm
Shank diameter Ds: 8 mm
Square: 6.2 mm
Recommended tapping-hole diameter: 6.8 mm
Cutting Data
Aluminium: 18 m/min
Steel <500 N/mm²: 18 m/min
Steel <750 N/mm²: 15 m/min
Steel <900 N/mm²: 15 m/min
INOX <900 N/mm²: 6 m/min
Copper alloys: 15 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