Tap, die
When it comes to precision threading tools, tap and die sets are indispensable for professionals and hobbyists alike. Our high-quality tap and die products are engineered to deliver consistent performance across various materials. Below we provide detailed specifications and FAQs to help you understand our offerings better.
Product Specifications
Material Composition
- High-speed steel (HSS) construction for durability
- M2 grade steel with 8% cobalt content
- Precision ground threads with ±0.001" tolerance
- Black oxide coating for corrosion resistance
Available Sizes
| Type | Size Range | Thread Pitch | Flute Count |
|---|---|---|---|
| Metric Taps | M3 - M24 | 0.5 - 3.0 mm | 3-4 |
| Inch Taps | 1/4" - 1" | 20 - 8 TPI | 3-5 |
| Metric Dies | M4 - M30 | 0.7 - 3.5 mm | N/A |
| Inch Dies | 1/4" - 1-1/2" | 28 - 6 TPI | N/A |
Performance Features
- 60-62 HRC hardness rating
- Precision ground relief for chip clearance
- 30° helix angle for optimal chip ejection
- Square drive shank for secure wrench engagement
- Three-stage thread profile for smooth cutting
Tap and Die FAQs
How do I choose between taper, plug, and bottoming taps?
Taper taps (with 7-10 chamfered threads) are best for starting threads in new holes. Plug taps (3-5 chamfered threads) work well for through holes or continuing threads. Bottoming taps (1-2 chamfered threads) are designed for threading to the bottom of blind holes. For most applications, we recommend using all three in sequence for optimal results.
What maintenance do tap and die sets require?
After each use, clean tools thoroughly with a wire brush to remove metal particles. Apply light machine oil to prevent rust. Store in original case to protect cutting edges. Periodically check for wear using thread gauges. Replace when cutting edges show rounding or chips exceed 0.002" depth.
Can your tap and die sets handle stainless steel?
Yes, our M35 cobalt-enhanced taps and dies are specifically designed for difficult-to-machine materials like stainless steel, titanium, and hardened alloys. For best results, use cutting fluid (sulfur-based for stainless), maintain proper RPM (30-50 SFM for 304SS), and peck drill when tapping blind holes to prevent chip buildup.
Threading Process Guidelines
| Material | Drill Size (75% thread) | Cutting Speed (SFM) | Recommended Lubricant |
|---|---|---|---|
| Mild Steel | Tap Size - (Pitch x 0.8) | 30-60 | Soluble oil |
| Stainless Steel | Tap Size - (Pitch x 0.85) | 15-30 | Sulfo-chlorinated oil |
| Aluminum | Tap Size - (Pitch x 0.7) | 100-200 | Kerosene |
| Cast Iron | Tap Size - (Pitch x 0.9) | 40-80 | Dry or compressed air |
For specialized applications, our technical team can provide custom tap and die solutions with modified geometries and coatings. Contact us with your specific threading requirements for tailored recommendations.