⭐ Spiral Flute Taps – Complete Product Introduction

(For high-precision internal thread cutting across steel, aluminum, stainless steel, and alloy components.)

Spiral flute taps are designed for efficient chip evacuation and stable thread cutting, especially in blind holes and materials that produce long or sticky chips. With optimized flute geometry and multiple coating options, they provide excellent cutting performance, long tool life, and precise thread profiles.

🔧 1. Coating Options

① Uncoated

Suitable for aluminum, soft metals, plastics, and low-carbon steel.

Features

• Lowest friction in soft materials

• High cutting sharpness

• Clean thread surface finish

• Best for general-purpose and economic applications

② Nitrided Coating (Nitriding Treatment)

A hard surface layer formed by nitrogen diffusion to increase wear resistance.

Features

• Increased surface hardness

• Improved heat resistance

• Longer durability in medium-hard materials

• Suitable for steel and cast iron

③ TiN Coating (Titanium Nitride)

A classic gold-colored coating widely used for general threading.

Features

• High wear resistance

• Excellent toughness for various materials

• Stable performance in alloy steel, carbon steel, and stainless steel

• Ideal for medium-to-high production environments

④ Rainbow / Multi-Color Coating

Advanced multi-layer coating with extra lubricity.

Features

• Very smooth cutting action

• Lower torque, ideal for stainless steel

• Extended tool life in hard-to-machine materials

• Great for precision machining environments

⑤ Cobalt Type (HSS-E / Cobalt-Enriched Material)

Made from high-performance cobalt steel for superior cutting strength.

Features

• Exceptional red hardness

• Delivers stable torque in stainless steel and alloy steel

• Suitable for tough materials and continuous production

• Greatly enhances tap life and cutting consistency

📏 2. Available Thread Standards & Variants

① Metric Spiral Flute Taps (ISO Metric Thread)

Standard metric thread taps for general industrial applications.

Applications:
Machinery parts, automotive components, molds, aluminum parts, stainless steel machining.

② American Standard (UNC/UNF) Spiral Flute Taps

Compliant with UTS – Unified Thread Standard (ASME B1.1).

Applications:
Automotive, aerospace, electronics, hydraulic components.

③ British Standard Spiral Flute Taps (BSW/BSF/BSP)

Used in UK, Southeast Asia, India, and many machinery markets.

Applications:
Repair parts, mechanical assemblies, pipe fittings, appliances.

④ American Long-Series Spiral Flute Taps (UNC/UNF Long Type)

Extended length taps designed for deep holes or interference-free machining.

Features:

• Increased reach

• Perfect for pocketed or recessed machining zones

⑤ British Long-Series Spiral Flute Taps

Extended BSW/BSF/BSP taps for deep or tight-access applications.

⑥ Metric Long-Series Spiral Flute Taps

Long-reach metric taps used in deep cavities, molds, and automotive housings.

⑦ Metric Thread-Insert Spiral Flute Taps

Designed specifically for Helicoil / wire thread inserts.

Features:

• Slightly oversized profile

• Guarantees perfect insert fit

• Ideal for aluminum, magnesium, aerospace structural parts

⑧ American Thread-Insert Spiral Flute Taps (UNC/UNF Insert Type)

Same purpose as metric type, for inch-based thread insert applications.

⑨ Metric Left-Hand Spiral Flute Taps

Left-hand cutting direction for reverse-thread applications.

Applications:
Rotating shafts, locking components, anti-loosening structures.

⑩ American Left-Hand Spiral Flute Taps (UNC/UNF LH)

Left-hand inch threads for specialized assembly components.

⑪ Sewing Machine Spiral Flute Taps (Textile Machinery Type)

Special micro-thread geometry for sewing machine and textile machinery components.

Features:

• High precision

• Thin-wall compatibility

• Smooth cutting for small-diameter threads

⑫ Valve Stem Thread Spiral Flute Taps

Special thread design for valve stem (valve nozzle) components.

Applications:
Automotive valve stems, compressor valves, brass and aluminum components.

⭐ 3. Key Advantages

• Excellent chip evacuation for blind holes

• Suitable for high-speed CNC machining

• Reduced torque and lower risk of tap breakage

• Superior thread precision and surface finish

• Multiple coating options for different materials

• Extended tool life in mass production

🏭 4. Typical Industries

• Automotive parts manufacturing

• Mold & die production

• 3C electronics and consumer products

• Home appliances

• Aerospace and precision components

• Machinery and textile equipment

• Valve bodies, hydraulic and pneumatic parts

📦 5. OEM / ODM Service Capabilities

We offer:

• Custom thread standards (Metric, UNC, UNF, BSW, BSP)

• Long-series, left-hand, reduced-shank, and special geometries

• Custom coatings (TiN, Rainbow, Nitriding, Cobalt)

• Private labeling & laser marking

• Customized packaging solutions