Guangzhou Jhome Cnc Tools Co.,Ltd
WNMG-K3
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Applications
- Workpiece Materials: Gray cast iron, ductile cast iron, malleable cast iron and various other cast irons
- Machining Operations: Semi-finishing, universal machining
- Typical Workpieces: Cast iron cylinder blocks, cylinder heads, brake discs, valve bodies, pump bodies, flanges
- Cutting Conditions: Continuous cutting, light interrupted cutting, low-medium-high speed cutting, both dry and wet cutting available
WNMG-K3 carbide insert for cast iron semi-finishing

| 槽型 Grade | 型号 Specification | 牌号 Grade | 切削条件 Cutting parameters | ||||||||||||
| BP6305 | BP6315 | BP6325 | BP6335 | BP2205 | BP2215 | BP2225 | BP3205 | BP3215 | BP5205 | BP4205 | BP4215 | fn(mm/rev) | ap (mm) | ||
| K3 | WNMG080404-K3 | ☆ | ★ | 0.15-0.50 | 0.40-3.50 | ||||||||||
WNMG080408-K3 | ☆ | ★ | 0.20-0.50 | 0.50-4.00 | |||||||||||
WNMG080412-K3 | ☆ | ★ | 0.20-0.55 | 0.80-5.00 | |||||||||||
★为第一推荐牌号 Recommended grade ☆为第二推荐牌号Optional grade
Product Introduction
WNMG-K3 is an 80° hexagon negative-type carbide turning insert. The K3 geometry is specially designed for cast iron semi-finishing, paired with two professional cast iron grades: BP3205 and BP3215. The 90° approach angle design effectively avoids machining interference, making it suitable for universal semi-finishing of various cast irons. The full-circumference groove design provides large chip space, and the special material combination enables cutting at low-medium-high speeds with excellent cutting performance. It can perform multiple turning operations including external turning, facing and profiling, delivering efficient and stable performance in both dry and wet cutting.
K3 Chip-breaker Features
- Specialized for cast iron semi-finishing
- Full-circumference groove design with large chip space
- Special material combination, suitable for low-medium-high speed cutting
- Suitable for universal machining of various cast irons with excellent cutting performance
Grade Introduction
BP3205
- Specialized grade for cast iron machining
- Innovative coating technology withstands high temperatures, suitable for dry and wet cutting, extends tool service life
- Submicron grain substrate ensures excellent wear resistance of the insert
- Coating structure: TiN+TiCN+Al₂O₃
BP3215
- Universal grade for cast iron machining
- Innovative coating technology withstands high temperatures, suitable for dry and wet cutting, extends tool service life
- Submicron grain substrate ensures excellent wear resistance of the insert
- Coating structure: TiN+TiCN+Al₂O₃
Key Advantages
- K3 specialized geometry for cast iron semi-finishing, full-circumference groove design with large chip space, smooth chip evacuation without clogging
- Special material combination supports full-range cutting from low to high speeds, with wide working condition adaptability
- 90° approach angle design adapts to stepped and profiling machining, effectively avoiding tool interference
- Dual-grade precise coverage: BP3205 specialized grade for cast iron machining, BP3215 universal grade for cast iron machining, adapting to different working conditions
- Submicron grain substrate ensures excellent wear resistance, innovative high-temperature resistant coating extends tool life, universal for dry and wet cutting
- Suitable for universal machining of various cast irons with excellent cutting performance and strong versatility
Applications
- Workpiece Materials: Gray cast iron, ductile cast iron, malleable cast iron and various other cast irons
- Machining Operations: Semi-finishing, universal machining
- Typical Workpieces: Cast iron cylinder blocks, cylinder heads, brake discs, valve bodies, pump bodies, flanges
- Cutting Conditions: Continuous cutting, light interrupted cutting, low-medium-high speed cutting, both dry and wet cutting available
Selection Tips
- For specialized cast iron semi-finishing with high tool life requirements, BP3205 is the preferred choice
- For universal cast iron machining with complex and variable working conditions, BP3215 is recommended
- K3 geometry has optimal adaptability for universal machining of various cast irons and full-range low-medium-high speed cutting scenarios