M2.5,M3 & M4 Forming Tap



M3 and M4 Forming Taps are precision chipless threading tools designed for high-volume, high-precision micro and small thread machining. Unlike traditional cutting taps that remove material to create threads, our M3/M4 forming taps adopt cold metal displacement technology to extrude threads without producing chips.
These small-size forming taps are specially optimized for ductile materials and stainless steel mass production. They effectively solve common problems of small taps such as easy breakage, chip clogging, thread burrs and short service life. Available in HSS-E cobalt steel and high-performance HSS-PM powder metallurgy steel with multiple coating options, they deliver stable precision, stronger thread texture and longer tool life for automated CNC machining.
Key Features
| Tap Mode | Chip-free Extrusion design | Brand | KZF |
| Specification | Metric,Unic | Origin | Suzhou,China |
| Thread Quality | 30% Higher Thread Strength | Coating | Uncoated,TiN, TiCN and TiAlN |
| Basic Matrerial | Premium HSS-E / HSS-PM Material M35/M42 cobalt | Application | aluminum,copper, mild steel, alloy steel, stainless steel |
| Tap structure | Reinforced Small Tap Structure | Precision | 6H |
Technical Specifications
Standards: ISO / DIN / JIS available | Custom length & coating supported
Thread Size | Standard Pitch | Recommended Drill Size | Tolerance | Hardness |
M2.5 | 0.5mm | 2.30mm | 6H | HRC64-68,HRC68-70(coated) |
M3 | 0.5mm | 2.80mm | 6H | HRC64-68,HRC68-70(coated) |
M4 | 0.7mm | 3.70mm | 6H | HRC64-68,HRC68-70(coated) |
Product Applications
M3 and M4 micro forming taps are the mainstream tools for small precision thread manufacturing, widely used in high-standard batch production industries:
- Electronic & Electrical Industry
Precision threading for circuit boards, connectors, terminal blocks, sensor housings, and mini electronic enclosures. Ideal for high-speed automated tapping. - Automotive Parts
Small fasteners, automotive electronic modules, interior accessories and lightweight aluminum structural components. - Medical Equipment
Mini precision parts, surgical device components and stainless steel medical fittings requiring high thread precision and smooth finish. - Communication & 3C Industry
Mobile phone accessories, communication shell parts, hardware fasteners and micro precision molds. - General Hardware & Automation
Mass production of small stainless steel and alloy steel fasteners, instrument parts and mechanical assembly components.

