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Made in South Korea
DIN371/DIN376 Spiral Flute Steam Homo (TB904)
Blind-Hole UNC Spiral Tap for Stainless SteelCode: TB904162
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Key Features
- HSS-E (M35) with 5% cobalt for durability and heat resistance
- VAP surface finish minimises friction and galling
- Spiral flute geometry ideal for blind hole tapping
Made in South Korea
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Product Description
The YG-1 TB904 Series 1/2 x 13TPI UNC Spiral Flute Tap delivers high performance in stainless steel and other tough alloys. Constructed from HSS-E (M35) with 5% cobalt, it offers exceptional heat resistance and durability. The VAP surface treatment reduces friction, while the spiral flute geometry ensures smooth chip evacuation in blind holes, preventing overfeeding and early wear.
- HSS-E (M35) with 5% cobalt for durability and heat resistance
- VAP surface finish minimises friction and galling
- Spiral flute geometry ideal for blind hole tapping
- Designed for stainless steel, titanium, and nickel alloys
- Patented design prevents overfeeding and tap failure
Product Data
| Workpiece Material | P M |
| Helix Angle | Square 40 |
| Operation | Blind Drilling |
| Surface Treatment | Steam Oxide Coating |
| Thread Angle | 60 |
| Thread Class | 2B |
| Thread Form | C |
| Thread Shape | UNC |
| Tool Material | HSS-E |
| Tool Standard | DIN 371-376 |
Blind Drilling
Carbon Steels
Great
Good
Great
Excellent
Structural Steels
Great
Good
Great
Excellent
Mild & Free Machining
Great
Good
Great
Excellent
Stainless Steels
Excellent
Good
Great
Excellent
