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Spiral point/gun nose tool geometry (with up to 138 parameters) has been developed and optimised during long-term tests in co operation with users for the different sections of structural steel, aluminum casting, machining steel, VA steels, heat-resistant steels and tool steels. Selected hard coatings increase the range of applications. The objective of developing Swiss+Tech's 'Black Ring' Taps was the realisation of narrower tolerances and more efficient cutting times
for the thread production.
The unique general purpose properties of these taps guarantee high productivity by reducing the amount of time spent changing taps for different materials and at the same time reduces the number of taps required by the machine shop.
Swiss+Tech 'Black Ring' machine taps with their wide range of applications are the result of years of experience in metal cutting. Responsible for our developments were the following demands from our main customers
Features and Benefits
Increased versatility for use in a range of applications
HSS-E construction for reduced the tool changing times
Hard coating for use with a range of materials
Typical Applications
Through holes
Standards
ISO Metric
Taper lead to DIN form B
Tapping tolerance to 6H
Manufactured to DIN 371/376.
| Class of Fit | 6H |
| Pitch | 1.3 |
| Finish/Coating | Bright |
| Thread Direction | Right Hand |
| Material | Cobalt High Speed Steel |
| Thread Length | 17.0mm |
| Overall Length | 90.0mm |
| Thread Size | M8 |
| Number of Flutes | 3 |
| Square Width | 6.2mm |
| Material Grade | M35 |
| Thread Standard | Metric Coarse |
| Tap Type | Spiral Point |
| Shank Diameter | 8.0mm |
| Dimensions Standard | DIN 371 |
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