Industrial TiCN Blue-Grey Coated HSSE M35 Machine Taps | 35° Spiral Flute 6H Taps for Blind Hole Tapping
1. Dimensional Overview: Material & Coating Synergy
Our TiCN (Titanium Carbo-Nitride) coated taps represent a significant upgrade over standard TiN. By adding Carbon to the Titanium-Nitride matrix, we achieve a surface that is both harder and more lubricious.
• HSS-E M35 Substrate: Forged with 5% Cobalt, providing the necessary "Red Hardness" to maintain a sharp edge even when friction temperatures reach 600°C.
• TiCN PVD Coating: Boasting a surface hardness of approximately 3,000 HV, the blue-grey TiCN layer acts as a physical barrier against abrasive wear and cold welding (material adhesion).
2. Geometric Precision: The 35° Helix Advantage
• Efficient Chip Lift: Specifically designed for Blind Holes. The 35° right-hand spiral acts as a mechanical elevator, pulling long, stringy chips upward and out of the hole to prevent "chip packing" and tap breakage.
• 6H Tolerance Class: Every tap is CNC-ground to meet strict ISO 2/6H standards, ensuring high-precision thread fit for automotive, aerospace, and medical components.
3. Technical Specifications (M2 - M42 Full Range)
| Size Range | Pitch (P) | DIN Standard | Shank Type | Overall Length (L1) | Thread Length (L2) |
| M2 - M2.5 | 0.40 - 0.45 | DIN 371 | Reinforced Shank | 45 - 50 mm | 4 - 5 mm |
| M3 - M10 | 0.50 - 1.50 | DIN 371 | Reinforced Shank | 56 - 100 mm | 5 - 15 mm |
| M12 - M16 | 1.75 - 2.00 | DIN 376 | Reduced Shank | 110 mm | 18 - 20 mm |
| M20 - M24 | 2.50 - 3.00 | DIN 376 | Reduced Shank | 140 - 160 mm | 25 - 30 mm |
| M30 - M42 | 3.50 - 4.50 | DIN 376 | Reduced Shank | 180 - 200 mm | 35 - 45 mm |
4. Application Perspective: Mastering Difficult Materials
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High-Tensile Steels: Ideal for materials with tensile strengths between 800 and 1,200 N/mm², such as alloy steels and tool steels.
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Stainless Steel Specialist: The low-friction TiCN layer prevents the "sticky" behavior of 304 and 316 stainless steels, reducing torque spikes.
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Cast Iron & Abrasive Materials: The extreme surface hardness protects the cutting edge from the abrasive particles found in ductile and gray cast irons.
5. Supply Chain & Quality Assurance
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Fully Ground Process: CNC-ground from solid hardened blanks for superior concentricity and surface finish.
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Industrial Packaging: Each tap is housed in a shockproof Rose-Box plastic case with high-viscosity anti-rust oil for a 36-month shelf life.
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OEM & Customization: Since 1997, we have supported B2B wholesalers with High-Definition Laser Marking and private label packaging to help build local brand equity.
6. Professional FAQ for Buyers
Q: Why choose TiCN over TiN for hardened steel?
A: TiCN is roughly 30% harder than TiN and offers better impact resistance. In harder materials or interrupted cuts, TiCN provides superior edge retention and lower "cost-per-hole."
Q: What is the difference between DIN 371 and DIN 376?
A: DIN 371 (M2-M10) features a reinforced shank for maximum torsional rigidity in small-hole tapping. DIN 376 (M12-M42) has a reduced shank, allowing for deeper tapping without shank interference.
Q: Can these be used for hand tapping?
A: While possible, these are high-performance Machine Taps optimized for the rigid alignment and constant speed of CNC Machining Centers.
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