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Spiral Flute Tap
-- Steady & Reliable Manufacturer --
Product Overview
This tap has helical flutes that pull chips up and out of the hole as it cuts, which makes it the preferred choice for blind holes where chips have nowhere else to go. The helix angle also gives a shearing cutting action that tends to produce a cleaner thread finish in tougher materials than a straight-flute design.
We supply this tap to machine shops and production tapping lines working blind holes in aluminum, stainless steel and cast iron, in both HSS and cobalt (HSS-E) grades across common metric and unified sizes.
Specifications
| Item | Detail |
|---|---|
| Design | Helical flutes that pull chips up and out of the hole |
| Material | HSS (M2); HSS-E (cobalt) for stainless and tough alloys |
| Coating | TiN, TiCN, or bright (uncoated) |
| Thread Size Range | M2 – M42 metric; #0-80 – 2" UNC/UNF |
| Best Suited For | Blind-hole tapping in aluminum, stainless steel, cast iron |
| Helix Angle | Standard helix angle for general-purpose blind-hole cutting |
| Thread Class | 2B/3B or 6H standard fits; custom classes on request |
| Packaging | Individual plastic case, or bulk box for production tap cribs |
Application Fields
- ✓Blind-hole tapping in aluminum components
- ✓Stainless steel blind-hole threading
- ✓Cast iron machine housing tapping
- ✓CNC and hand tapping of deep blind holes
- ✓General machine shop production tapping
- ✓Tooling distributor resale to machine shops
Key Advantages
- Upward chip evacuation clears chips from blind holes where they would otherwise pack and risk tap breakage.
- Shearing cutting action from the helix angle tends to give a cleaner thread finish in tougher materials.
- HSS-E (cobalt) grade option extends tool life when tapping stainless steel and harder alloys.
- Coating options (TiN, TiCN) reduce friction and extend service life in production tapping.
- Standard shank and thread class options make it a drop-in replacement in existing tapping setups.
Company Profile
Dongtai Jinzhize Metal Products Co., Ltd.
As Spiral Flute Tap Manufacturer and Spiral Flute Tap Factory, Dongtai Jinzhize Metal Products Co., Ltd. is a specialized manufacturing facility dedicated to threaded connection products for the automotive and aerospace sectors. We primarily produce Helical Wire Inserts, Self-Tapping Inserts, Key Locking Inserts, Threaded Adapters, Oil Plugs, as well as matching installation taps and tools.
Established in 2015, the company operates from a 10,000-square-meter-owned manufacturing plant equipped with hundreds of machine tools and automated production systems. Through years of development, we have built an experienced team of design, development, and production specialists, complemented by a rigorous quality management system and comprehensive after-sales service mechanism.
Our products are widely utilized in the automotive industry (including engines and transmissions for both passenger and commercial vehicles), the aerospace industry, and rail vehicle manufacturing.
With an annual output value of 153 million RMB in 2024, we possess the capability for a large-scale, stable supply. We are committed to providing customers with highly consistent, traceable products and reliable service support.
