Illustrative image; not for confirming a model or configuration.
German BOSS Spiral Flute Taps feature optimized spiral flute and chamfer geometry for efficient chip evacuation, especially in blind holes. Multiple coatings such as TiN, VAP and TiCN are available depending on the model to improve tool life and reduce chip-related problems.
Key specifications
- Brand
- BOSS
- Brand Origin
- Germany
- Product Group
- Cutting Taps
- Product Series
- Spiral Flute Taps – SFT
Contact us to choose a configuration
Price, stock and lead time are confirmed during consultation.
- Reference documents
- Technical advice
Overview
BOSS Spiral Flute Taps – SFT are machine cutting taps from BOSS, a German thread-tool manufacturer, designed with a focus on machining stability, chip evacuation and tool life.
The SFT geometry combines a spiral flute with application-specific chamfer designs. The spiral flute helps guide chips away from the cutting zone, while the chamfer geometry controls the initial cutting load and threading process.
BOSS offers different chamfer configurations depending on the product series. A representative configuration is Form C with 2–3 Threads Chamfer, while other configurations are available for different machining requirements.
Efficient chip evacuation is particularly important in blind-hole tapping. Chip accumulation inside the hole can increase cutting torque, cause chip packing and increase the risk of tap breakage. The spiral flute design helps control chip flow and supports more stable threading.
BOSS also provides different surface treatments according to individual tool codes, including TiN, VAP and TiCN. The appropriate coating can improve wear resistance and extend tool life under suitable machining conditions.
In addition to DIN and metric tooling, BOSS offers JIS Machine Taps, making the range suitable for machining environments commonly used in Asian and Southeast Asian markets.
Tô Gia supplies BOSS Spiral Flute Taps according to the actual machining requirement, including thread size, pitch, workpiece material, hole type, chamfer, tolerance, coating and cutting conditions.
Applications
Machine tapping
Blind-hole threading
Carbon and alloy steels
Stainless steels
Cast iron
Aluminum alloys
Copper alloys
Special alloys depending on series
Precision machining
Automotive components
Mold and die manufacturing
Electronic components
Mass production
Specifications
| Specification | Value |
|---|---|
| Brand | BOSS |
| Brand Origin | Germany |
| Product Group | Cutting Taps |
| Product Series | Spiral Flute Taps – SFT |
| Machining Method | Machine Tapping |
| Flute Type | Spiral Flute |
| Spiral Direction | Right Hand Spiral, depending on model |
| Hole Type | Mainly Blind Holes |
| Chamfer | Multiple configurations, depending on model |
| Representative Configuration | Form C, 2–3 Threads Chamfer |
| Standards | DIN / JIS / Metric, depending on model |
| JIS | JIS Machine Taps, depending on model |
| Workpiece Materials | Steel, stainless steel, cast iron, non-ferrous metals, special alloys |
| Tool Material | HSS / HSS-E / specialized grades |
| Surface Treatment | TiN, VAP, TiCN, depending on model |
| Thread Tolerance | Model dependent |
| Sizes | According to individual tool code |
| Main Application | Internal threading, especially blind holes |